The most important thing to remember is that you're not going to sell a bestseller right off the bat. Building up a name, more skills, and gigs takes time, but it is possible. The most important piece of information one can know when making the decision to enter this field is that you don't get paid to write. You get paid by selling what you write. Deciding to take the plunge into this field is rather easy.
Freelance writing has a degree of freedom about it that is wondrous.
You can make your own hours, writing as much or as little as you want. Depending on how far you want to take it, of course. Some may want to do some random pieces, while others choose to immerse themselves into freelancing. The path you take is up to you, but a few tips can be helpful. If you are going to write occasionally, you have to go to the right place.