So here is the big question that I am concerned with and I believe you should be concerned with too.
Is your account flagged?
I have a personal cosplay account that's 5 years old. At the beginning, I did the same as you, fake followers, then removed them. And I also did slight lowkey botting, just likes... then I stopped and for a over a year have done things vanilla.
My content is damn good and my engagement is okay, but it's always seeming like Instagram is limiting my overall reach. Some of my shit it viral worthy (atleast in the cosplay niche) but it never sees light of day.
So my worries to you friend, is if your content will forever be flagged to not perform well by Instagrams shithole algorithm