Hi Christina,
First of all, ignore those who think you can't get rid of the muscle in order to achieve a feminine look. I've seen photos of girls who have been into bodybuilding and sports who have done it. If you want to do it badly enough, you can do it.
And also ignore those who tell you that it would be a shame to give up your lifting. If it isn't what YOU want, then you're wasting your time with lifting. Don't do it because you think it's what you're supposed to want. I fell into that trap in high school. Because I'm tall, I let others sway me into going out for basketball, and I really didn't like it, but I did it because I thought that I was supposed to want to do that, so I tried living up to what others told me I should be instead of who I knew I was.
If you have access to a therapist who specializes in transgender issues, you might want to see what they can do to help you figure out what you want to do. I urge you very strongly to NOT wait another year, life is surprisingly short, you'll see that very clearly when you're older, don't waste a second of it.
Carol