I'm burned out performing an old version of myself online - what now?

You built an audience by being a certain version of yourself, and now that version fits like clothes you have outgrown. The exhaustion is not laziness. It is what happens when you have to keep performing a person you are no longer, on a treadmill that never lets you stop to breathe. The audience did not fall in love with a frozen character. They responded to something real in you, and you have simply kept growing while the persona stayed still. That gap is uncomfortable, but it is also a sign of life. The you of today is more interesting than the one you are imitating. You do not have to burn it all down. You can let the work grow up with you, slowly. Change one thing this week, a topic, a format, a pace, that is truer to who you are now. Some may drift away. The ones who stay will be there for you, not the ghost of you. That is a lighter way to live.