How much money can I realistically make?
It depends, and there are no guarantees. It comes down to the audience you build, how often you post and stream, and how much your fans choose to support you.
Some people earn a little from the odd tip. Creators who stream regularly, offer memberships and grow an audience earn more.
Vergr pays you 50% of what your content earns to start, rising to 80% as your total earnings grow. It never goes back down, and your plan and level don't change it.