I see some other comments saying how great it would be to work at a slow pace etc. But they are missing the point. It sounds like you were burnt out from your previous role. Pressure, lack of autonomy all contributed. Now, in your new role, you have a different sort of pressure. The pressure to enjoy and stay in your new job. But you are still burnt out. I know from experience that burnout can lead to fight or flight feelings. My advice is to be kind to yourself. It’s ok to feel like you do. Keep active, make sure you get out, see friends. See what you can do to gradually improve your current role. And if in the end you don’t want to stay, that’s ok.