I am very emotional. I get angry and I start crying at small issues. Help me

My dear

After every prayer ask for help from Allah to control your emotion.

Read Quran daily with translation.
Drink lot of water.
When you feel that anger is coming to you say aaozu billah & then bismillah . Say in your heart that  Allah it is shaitan, save me .
Drink water at that time.
If you are standing sit down.