How do I get over these irrational things that make me mad?

I get really jealous and hide it all the time. I smile when I'm mad, and snap later. I don't distrust my boyfriend. It's more of feeling inferior to other girls. I'm just me and they're so pretty. I'm simple and angry all the time. He could do so much better, and I don't understand why he likes me. I'm not cute like they are. I put so much effort into not getting angry, but still get mad later. I think most of my anger comes from not wanting to be abandoned. People move on and forget about me. People who said they would always be there. I don't think he would leave me, but its an irrational fear that he would find some other girl prettier or smarter. I remember a couple of days ago he said he never heard me sing so as far as he knows this other girl is a better singer than I am. I'm too scared to sing when anyone is around. I'm sure he was just trying to prompt me to sing, but it feels like he was saying she was better than I am. I always feel like that, and it makes me so angry. If he's subscribed to girls online, and he watches their videos, I get really mad over that too. Because they're really pretty and I'm not. I feel like a bad person, because I hate these girls over nothing. When he messaged a girl (Same girl who is a good singer)and promised he never spoke to her I never really started trusting him with his promises. I love him, and want to always make him happy, and I don't think he would ever consider cheating. I just don't like him being so friendly with other girls. I think that's partly why I call these girls names. Just typing this makes me mad. I just need to get over this jealous mindset.

It help me when I get myself into a peaceful state, and then I fight to stay there.

One of the most important things you need is to surround yourself with positive people. Any bad apples in your life, need to be ignored and not let in.

Fearful people, destructive people, and evil people need to be discarded immediately.

Hi,

I don't necessarily think that your problem is anger or that it is irrational. Is it possible that it's actually low self-esteem and insecurity playing up?

Would you consider some sort of therapy?