It may be tempting to stay up late and sleep in on the weekends, but studies show that this can potentially wreck your whole week's sleep schedule. Instead, try to maintain your usual sleep schedule seven nights a week, going to bed around the same time and waking up at the same time every day. Napping feels great when you're really drained, and a short "power nap" may help you get through a busy day on little sleep. But even a short nap could reset your internal sleep schedule, causing you to lie awake and restless at night. Instead of napping to catch up on sleep, try going to bed a little earlier that night. You'll sleep more soundly and cut down on the risk of losing even more sleep at night. Your bedroom should be a room that makes it easy to relax and fall asleep. Bright lights upset your body's circadian rhythm, which is why it's important to sleep in as dark a room as possible. That may require thicker curtains or blinds to block out any outside light, and leaving a fan or air conditioner on (or a window open) to keep it cool. Optimal sleep temperatures range between 60 to 67 degrees Fahrenheit (15.5 to 19.4 degrees Celsius). That's because your body temperature lowers slightly when you sleep, and being in a cool room may help initiate the process. Use curtains or blinds to block outside light, and turn off all artificial lighting in your room. If it's still to bright (say, if you work at night and sleep during the day), consider buying a sleep mask. They're fairly cheap and can be found online or at many retail stores. Try to block out as much outside sound as possible. If need be, you may have to sleep with some type of white noise, like a fan or white noise machine. Earplugs can also help, if you live in a particularly noisy neighborhood. It may be tempting to respond to texts while you're lying in bed, or to surf the internet from your mobile phone or tablet in bed. But studies show that the glow from electronic screens can reduce your ability to fall asleep. Using electronics can also cause additional stress. For example, checking a work email or reading about upsetting news events may make it difficult to fall asleep. Turn off or set aside all electronic devices at least 30 minutes before bed. This will help you avoid stimulation and get ready to sleep. Some days you may be unaware of your evening habits and how they could be contributing to sleeplessness. Try keeping a detailed log of all your evening habits, including anything you had to eat or drink, any activities you engaged in, and the precise time you did any of those things. This may help you realize that certain habits are interfering with your ability to sleep, or if nothing else it may make it easier for your doctor to diagnose what may be causing your sleep problems.
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One-sentence summary -- Maintain a regular sleep schedule. Avoid naps. Keep a dark, cool room. Avoid electronic devices. Try keeping a sleep log.

Start at the spot your tested earlier and position the tip of the chisel against the wall at a downward angle. Hit the back end with your hammer to drive the blade into the plaster and separate it from the brick. Continue chiseling one patch at a time, working your way inward from the edges. Alternatively, you can take care of the demolition phase with only a crowbar if you don't have a suitable masonry chisel. Use the rounded end for smashing and the pointed end for prying. There's no need to be delicate here, but don't get carried away, either. The idea is to use enough force to loosen the plaster without damaging the underlying brick. If you're lucky, you'll send large chunks of plaster raining down with each strike of your chisel. If not, you'll need to give it a little encouragement. Wedge the tip of your crowbar or putty knife beneath the outer edge of stubborn sections and pull back forcefully to coax them free of the wall. You're more likely to remove the plaster in broad sheets using slow, controlled strokes than you are using quick, choppy ones. Keep a few large plastic tubs or buckets on standby to catch the plaster as it comes off of the wall. Once you've successfully removed plaster, give the entire surface a thorough scouring, applying moderate pressure with your brush. This will loosen any remaining debris that's too small to get at with your crowbar or putty knife. Work from top to bottom to avoid spreading more dust to sections you just brushed. If you notice your wire brush leaving scratches in the brick, one solution is to buff them out using a power drill fitted with a wire brush bit. Unlike the handheld brush, the rotary bit spins a circular direction, erasing conspicuous lines and scratches.
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One-sentence summary -- Use a hammer and masonry chisel to break up the bulk of the plaster. Pry off clinging sections using a crowbar or putty knife. Go over the freshly-exposed wall with a wire brush.

Don't wait until you have mastered the technique in practice settings to apply it to your instrument. The only way to get better at it is to do it, so add the rest of your instrument as soon as you can make a sound using just your mouthpiece. Do not start with complicated music, or with songs at all. Instead, start by holding single notes, then move on to easy, repetitive exercises. This will let you continue to perfect your technique. Some registers will make this easier than others. You may find it easier to start with exercises that hit the higher part of your instrument's range. Circular breathing can be mentally and physically tiring at first, so you might find it hard to keep it up for long. However, this doesn't mean that you should only practice once in a while. Instead, try three daily sessions of a few minutes each while you are learning the technique.
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One-sentence summary --
Try it as soon as possible. Work your way up. Practice a little bit each day.