Man i had same speech therapist when i was 19y she gave same exercise like yours doing exercise for breathing against blockades it’s doesn’t help nothing has just wasted my time and in the end i founded the right therapist, this is very wrong way to deal with blockades and all that she doesn’t have idea how to help u or someone else bro just gave her 3 months if u don’t feel any improve find another speech therapist cus this where you are is the wrong one