Hii!! I'm also 18 and I'm going to get laser on my upper lip and chin, as I saved money. I don't know if I will be able to have many sessions but I will be saving money in case I get more hair growing. I don't have a lot.
Well, to feminize your appearance, you could start growing your hair out and plucking your eyebrows. If you do them right, it will make all the difference. I swear. I look so much femmier with my eyebrows done. Then, makeup. Start practicing, practicing, practicing. Buy cheap makeup from the drugstore and when you get it right, you could start buying more expensive makeup. Oh and the voice, train if it's guy sounding. It really goes a long way. Interestingly, sometimes I get mam'd by taxi drivers which is weird to me because I don't look right, but it does make a difference.
Good luck!!! I'm basically the same as you, I'm just starting out.