Everyone in my house is yelling Im getting so stressed!?

I am 17 years old and I used to self harm. I suggest keeping a journal, you can decorate it, draw in it, write songs poems, what your feeling (what makes you mad or sad), you can use a marker and scribble or make lines whatever works.When ever you feel like crap you just get the journal and express all the feelings and let it out on those sheets of paper.