There's an end to therapy?

I've been going to therapy since I was 16. Now 33. I've had I think 11 ts. Took some time off here and there, but I do much better with managing the bipolar when I'm in therapy. Now though me and my t just have a weekly 15 min check in call. If there's something I need to talk about we talk about it, if not we just kinda bull **** for a while, and she talks about what she's been doing lol. Last time we just talked about politics. She doesn't charge me for the check in calls, but if we had an actual session it would be $50 so I'm glad I'm not being charged. We've worked together almost 3 years and I've already given her $100s. I'm debating about going back to my other t for a while though to learn the rest of DBT but he tried to dx me with BPD, which I don't have, so idk.