Should I do streaming (I am a nobody)? I'm currently half want to and half not want to. And if so, what are streaming platforms other than Twitch, YouTube and Facebook?

Sure, if you like streaming, just do it.
Doesn't matter if your content is good or not.

Picarto

Honestly, it's you life mate.
If it makes you happy go for it!
If it doesn't, don't.

I wouldn't bother if you're only half into it from the very beginning.

If you start now and get burnt out after a week, you'll never revisit it. If you wait until you're fully on board, you'll have a better and longer time of it.