I know you have frequently asked about and described your struggles with understanding the relationship between scales, chords, keys etc on a theoretical level. You do not need that understanding to sound musical but the analysis such knowledge brings can perhaps explain why you are not sounding musical. It is an after the fact analysis though.
You have also commented a number of times that you struggle to hear chord changes and more and have struggled with playing / improvising to backing tracks. Backing tracks question - grade 3 improv with C major / A minor pentatonic. Am I doing it right?
You have had some guidance on improvising over a one chord vamp: One Chord Vamps - #4 by Stuartw
All of this is in the abstract.
When you say you are not sounding musical, it is abstract for anybody who is trying to help you. And it is subjective.
Honestly, I think the best thing you can do for yourself and for garnering better support from the Community is to record an audio (it need not be video) of you doing the thing you want help with - playing the A minor pentatonic scale over a backing track. Share it and allow people to have a firm basis for offering their guidance.
Without such a useful tool, it is all just a question of linking back to Justin’s lessons or repeating advice and suggestions that have been written many times over the years in the Community.
Question - you are using the A minor pentatonc … are you using it to try to play something in the blues style? A 12-bar blues? Or are you using a backing track that is described as being in the key of A?
If the latter, that could be at the heart of the problem. Please let us know which backing track(s) - which exact ones and where to find them - you are using.