don't worry Stable diffusion's got your back, it's a free and open source, it's got models that rivals the other txt2img ai's out there, and is crazy customizable with an active community that constantly pushes it to the next level.

You can run it on your own hardware if you've got a decent gaming pc. Or use a cloud based service (these might have fees).

You can get started with these links:

-Tutorial (from 4chan so excuse the language)

-link repository (for more content & cloud sources)