Define "suicide".
Killing off a fake persona? Yes, I'm all for it.
The other kind? Hell no.
While you are alive, you still have a chance of finding happiness. When you are dead, you do not. Even if that chance is a long shot, it's still better than a definite zero.
If the end goal is to be happy, then staying alive appears to be the more logical option.
I've been there, I've done that, I've been rock bottom. The way out is all about being kind enough to yourself to give yourself a chance. Give yourself permission to exist.
Give yourself a chance to live before you go killing yourself off.
That zombie state? That's not living. That's barely existing. You aren't growing, changing, or working towards anything. Essentially, you don't exist - if you died then they'd bury you in drag and stick someone else's name on your tombstone.
Transition is an odd thing. It can be frustrating, confusing, awkward... all sort of things. But it's also liberating, exhilarating, and just downright wonderful. It's violently tearing off a stuffy, smelly old costume and feeling the fresh breeze against your skin for the first time.
I personally wouldn't describe it as painful or miserable in the least.
There is no way out of your life. So why not make it so damn awesome you don't want out? Stand up, take charge, and do what you've gotta do to be happy.