Um..if you know a vampire, lycan, or demon that's willing, have them either check your aura or your scent. That's the easiest way. If not, then meditate. Find exact characteristics that make you feel un-human and do research on that.
i think you alreay know what you are you are just not willing to except it yet. but you can do the things that the others said. i promise it will help. also giving info will help alot too.
okay you need to find an energyworker to awaken you. or look at what really pulls you in. look at your personality and see what species is more compatible to you