Hi, Grey. If you think you might be nonbinary, we have a board for that, and also one for people who do not intend to transition. Folks on this site are all over the map. Some are solidly male or female but don't make any medical or surgical changes. Some don't identify as either male or female--or they identify as both, or some other way entirely. Some start out feeling one way but change their identification along the way...and so on.
If you feel that it's appropriate and you can afford it, seeing a gender therapist can help. Other people don't feel impelled to experience therapy. It all depends on your particular needs and, if you later decide on hormones and/or surgery, the dictates of whatever medical system you are in.
Otherwise, experimenting, journaling, and talking to other trans people are all great ways to explore your options. Just remember that this IS a process, and your feelings might shift around from time to time; try to embrace wherever you are at any given moment because it's all part of the ride.