not blowing up is not always of sign of "doing good". for me it means i'm stuffing feelings and that leads to either switching or anxiety or both. thacrew said what i was going to say. deep, mindful breathing.

realize you are upset, angry, what ever. identify that feeling you are having. breath with the acknowledgement of that feeling. using a "mantra" such as "i feel my anger, frustration or whatever" on the in breath and "i acknowledge my anger(or whatever)" on the out breath. then after a few breaths say " i acknowledge my anger" on the in breath and "i will care for my anger" on the out breath. what this does is it lets you feel, know, acknowledge and then release. by the time you do this for several minutes you will feel more grounded.