I'm shaking with anxiety I've had it from 6 months through stuttering but recently in the last few weeks I can't pranounce my words right and I mumble?

See a physician. To rule out the possibility of medical causes, see a physician for a thorough examination. For example, infections, hormonal and neurological problems should be excluded. If the problem is psychological, see a psychologist/psychiatrist and possibly a speech therapist who may be able to help you.
Benzo or Beta . Anxiety is a state of mind. Pancic disorder is a a more acute condition that overtakes people with high heart rate, palpitations etc. A low dose benzodiazepine or a betablocker which is normally used for hypertension control is sometimes effective in cases of anxiety.