Im always angry for the smallest reasons

Hi.. so i need advice, i have been batling with MDD since it started showing up when i was 13. It was bearable at first but I used to be very reckless and impulsive. However after a while it became anger. And even after going through therapy and improving my mood I find myself getting angry all the time for no reason or for small shit. I do it at work, in the house, with my fiance and I don't know how to control myself and stop being like this :/