That’s a good sign. If you can be fluent then, you can be fluent when speaking to other people. If you had a terrible stutter even in those situations your prognosis would not be good. I know your experience with speech therapy hasn’t been of much benefit but you might try a therapist that specializes in stuttering. There may not be someone in your area but there are online options. If there is a local group of people who stutter that get together I think that can be very helpful. If there may be . a live social group on zoom. Lastly you could try something like SLP Stephan who has a pretty thorough program for self therapy that you can download, but a personal relationship with an expert is best.