I have always been good at building Facebook pages through Facebooks ads without needing a high budget. Would it be possible to start my own business running ads for other people this same way?

If so, how could I market myself? I feel that any time I've tried to get paid doing this, I come across as sketchy. For example, I tried to create a Fiverr profile doing this and my profile was permanently taken down. I then tried to create a website but that didn't yield any customers. I understand that this skill is something that many people can do but many people can't grasp it at the same time and as I'm working out my options to make a steady income, I keep coming back to this and wondering if there's a way to benefit from it.