Tough spot to be in but a simple solution. I was in the same situation except my flared back up in university and hit me like a slap in the face. There is something in your life that put more tension inside of your body (stress, insecurity, break up, self doubt, etc) your body sees this stress and as a result a stutter prevails. Theres ways to overcome this, especially if it just flared up again, it wont be hard to get back on the right path. Dont do what I did and let it run your life for a long time or else it will be harder for you to overcome. Let me know if you want help💪