To minimize fat gain during your bulk, use nutrient timing to your advantage. By this, I mean consuming your carbs only after you have worked out when you are most likely to NOT store sugars as fats....
What actually causes it? The most direct causes are inadequate nutrition (not eating enough or eating foods that lack growth-promoting nutrients) and recurrent infections or chronic or diseases which...
Touch your body without shame or embarrassment or thoughts of it needing to be something else. Give yourself a hug before bed and tell yourself that it will be okay. Touch yourself with kindness...