They will come, but it’s not easy!
It’s easier if you don’t think about it a lot. Keep creating content, focus on your games and other projects, and occasionally post on social media (including patreon) about progress. At some point you will start getting more and more followers, but that might be a few months down the line.
It can also be a good idea to link your patreon page to other social media, especially if you already have an audience.