Even if you feel like your diabetes has gotten better, it is important not to stop taking your medications unless a doctor tells you it is alright to do so. The medications are most likely what is keeping your diabetes symptoms under control, so without them, your glucose or insulin levels could get out of control.
To keep stress from elevating your blood sugar, try practicing meditation. Meditation is a quick and easy way to calm yourself down and keep your blood sugar levels stable. If you're feeling irritable or overwhelmed, excuse yourself, sit down, and take a few minutes to meditate. It'll make your diabetes much easier to manage.
If you're having trouble keeping yourself to a healthy Diabetic diet, don't change things up. Have a chicken night, a fish night, a lentil burger night, etc. so that you know what's supposed to happen on Thursday and can prepare for it. If you have something different every night you'll still have variation, but having a schedule will make you feel much less stress and you won't cave into temptation.