Anyone else find they need repeat sessions on a regular basis?

I’ve found over the years that if I go longer than 4-5 months between sessions the “old me” seems to come back. Am I the only one, or is this not uncommon?

I mean, if this is how it is I’m still grateful for the way things are now, but I read about people being very “one and done”, and I wonder if there’s something ‘incorrect’ with my approach.

FWIW I do things solo, and as such there’s limits to the dose I take. Also: I do feel like I’ve processed my past fairly well, and my present is pretty good (when I allow it to be).