You don’t need a new personality. You need to stop hiding the one you already have.

The urge to become somebody else usually arrives when things are going badly, and it is a way of avoiding a harder move. Rebuilding from scratch sounds exciting and never actually happens. What is available instead is subtraction, dropping the layer of management sitting on top of what you already are, which is faster and considerably less work.

Pick one setting this week and remove a single filter. Say the actual opinion, laugh at the volume you have, mention the thing you are into. Changing nothing and hiding less usually gets you what you hoped a new personality would.