Hmm... people are hopping off Twitter rather than flocking to it these days due to the owner's antics, and as long as Bluesky remains invite-only it's unlikely to replace Twitter as the next big platform. Once you've built up your followers on IG a bit, maybe you can ask them what platforms they're using and go where they are? Might help avoiding burnout, too, if you only have to worry about posting to one platform for the time being. I do have invite codes if you (or anyone else!) wants to give Bluesky a try though, so let me know. Good luck!!