I get angry rly easily, help pls?

basically whenever som1 is talking 'banter' about me n its just a bit of a laugh, my initial instinct is to get super p*ssd off and start shouting n swearing at them n stuff like that. also when I hear ppl compliment my gf or rumours spread that so n so likes her, I get rly over protective and get (again) rly angry with the person who made the comments. how can I stop myself being this way?