Many of us felt that horrible before we accepted the path to transition, from what I've read on the forums here.
I personally never became suicidal over it, but that's because I was in hardcore denial about my dysphoria for most of my life. I still suffered from depression and became suicidal at points in my life, but didn't even know why. I used drugs and religion as a form of escapism and ignored my true feelings. Now that I know what it was that made me (and makes me) miserable, I can change it. Thus, I am opting to transition, and this fills me with a lot of relief now, more than I ever had before I accepted my dysphoria.
Just accept yourself, and accept (if you've made the decision to transition) the transition. Now that you're on that path, it doesn't have to happen over night because it is and will happen ^_^
I hope you start feeling better and relax. If you're organizing transition and your mother has accepted you, you're in a good position.