It's hard to maintain any of the fluency I've gained

It's hard to maintain any of the fluency I've gained I did a month long program with speech therapy 6 years ago and it was amazing. I was almost completely fluent for the following year. Then slowly, it kind of went away and it got to the point where it was almost the same as before I did this program, but I had some strategies I could occasionally use. So I went back to my speech therapist 4 months ago and we've worked together since then (in a less condensed way than the previous program I did) and I've noticed a lot of improvement in my fluency. But even while I am still working with her right now, I feel like my fluency is slipping away again in the past few weeks. I'm really trying to continue practicing these strategies my therapist has taught me, but sometimes it feels like nothing is working anymore. It just feels like there's always tension everywhere in my mouth. If anyone has any advice or insight on this, that would be very much appreciated.