Jealousy

I feel like a very pretty girl but i can’t help but to feel jealous with my boyfriend! I get in my feelings when I see him post a pic/video of himself idk why it makes me mad?! It’s stupid because I do the same thing ugh idk I know it’s wrong but do any of you guys feel this way or have you ever felt this way? And how have you dealt with it? Or am I just a psycho lol