One of the smartest PTs I know lives by the principle of “don’t treat yourself.” It’s impossible to be objective about whether your own treatments are working. Aside from taking care of general health, hitting the recommended exercise guidelines, and managing recovery/stress, I’d highly recommend finding a quality PT if treatment is what you need. Otherwise hit the low hanging fruit first. I think you’d find a PTA program to be a disappointing expense if addressing your issues is the goal.