I have depession and i want to know what causes it bc i became depessed since my gf cheated then my other gf broke up with me and i have been depessed for 6 months now

 sadness of prolonged loss of loneiness

Explanation:

because since the first girl cheated on you haven't been the same

Explanation:

Why because depression forms from sadness,anger, and if you feel like no one and from getting treated as you and since you had depression for 6 months now you can still have a counselor to talk to because if you don't and you have it for more than 10 months then it will be hard for you to talk to someone because you have been holding it in for a long time and yeah so my suggestion is for you to talk to someone about it and hopefully you get better

because health skills are tools and strategies and also practical skills are also something you need to learn (like tools and strategies) and put it in reality.