Absolutely, you can. I felt the same way when I first realized I was trans (though I didn't have a word for it back then, just knew what I needed to do to be comfortable with my body), and I went into denial for eight years. I finally realized that I was never going to be happy being a guy, and went through with transition, and you know what? It wasn't so bad. Some people gave me crap, it does happen, but it's important to just let it be their problem, and not yours. I'm proud of who I am today, my transition taught me to be strong enough to not give a ***** about what others think of me.

If you need to transition, then do it, if for no other reason than to just be yourself.

PM me if you want someone to talk to about this sort of thing.