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Before you set out for any kind of fishing trip, you'll need a valid license issued by your state. Every state's requirements are different, and some wilderness areas have either more lax restrictions or even greater restrictions/prohibitions on fishing. Getting caught without a license or fishing in a body of water that doesn't allow fishing can land you in trouble with the law, so it's best to comply with your state's requirements and know the rules wherever you intend to fish. Search online to see what your state requires. You can also find helpful courses on e-learning sites like Udemy. You can also find information online on where and how to acquire a fishing license. Some locations may allow you to acquire a fishing license online, while others require you to visit a retail or licensing facility in person. You'll need some specialized equipment in order to fly fish. If you're working within a budget or aren't sure yet that you'll want to stick with fly fishing, it's best to borrow gear or purchase low-cost equipment. The basics you will need at any price point include: a fly rod (for most freshwater streams, lakes, and ponds, a six to eight-foot rod is sufficient) a spool flies pliers a hemostat (special clamps/forceps used to remove hooks from a trout's mouth) a sharp pocket knife a rod and reel case a fly box to transport your gear a landing net a hat to block out the sun (anything with a brim will suffice) sunglasses with polarized lenses (so you can see through the glare in the water) waders wading boots (for better grip on the slippery riverbed) non-slip feet attachments (like sole spikes) a fly fishing vest with pockets for your tools and flies There are many different types of flies, each one designed to mimic a different aquatic invertebrate. You can purchase pre-made flies at most fishing supply stores, or try making your own. Some of the most common types of flies are designed to look like the following aquatic invertebrates/insects: mayfly hatch Caddisfly hatch stonefly hatch terrestrial hatch (designed to look like and imitate a terrestrial insect) midges scuds leeches dragonfly/damselfly If you've been fly fishing for a while or simply like working with your hands, you may prefer to make your own fly. Be aware, however, that it can be very time-consuming. You'll need various types of feathers and fur, good eyesight (or a lighted magnifying glass to see better), and skilled hands. Pass the line just before the eye of the hook and wrap it around the shank of the hook to the midpoint. Place your fly materials on the shank of the hook and pinch them in place. Wrap the line around the fly materials until they're firmly in place, then wrap back over the spot you just wrapped. This will help secure the hackles (or whatever materials you're using) in place. If you add any additional materials, make sure they're approximately even/level with the materials already wrapped to your hook. You can split hackles or other materials by separating them a tiny bit (just a half-inch or so at the tips) and wrapping some of the line between them. Apply some wax to the line just before the hook/fly. Pinch and twist a tiny amount of dubbing fur to the wax. Keep twisting and wrapping it in one direction up and down the waxed portion of line until the fur is tightly around that section of the line. Wrap the waxed and fur-wrapped section of line around the hook shank towards the tail, then turn and wrap back over the shank. Tie off the line, cut off any excess thread, and use a drop of liquid cement to secure the whole fly in place. Whether you're tying your own homemade fly or tying on a store-bought fly, it's important to know how to attach a fly to your line so that it will stay on. Don't tighten any knots until your fly is in position, and make sure you know how to properly secure a fly on your line before you cast into a river. Always wet your knot with saliva or river water before tightening it. This allows you to slide the knot around on the line and get it into place. Keep your knots tight once they're in position. Use a continuous and steady pull on the line, and check that your fly is secure before casting. Trim any excess line off the end past the knot. Try to cut as close to the knot as possible without actually hitting the knot itself.
Find out the fishing license requirements in your region. Borrow or purchase quality fishing gear. Choose effective flies. Learn to tie your own dry fly. Tie fly knots more effectively.