Have you ever thought of suicide?

i did back in 5th grade. my dad has bi polar and schitsophrenia for most of my life prior my dad was in and out of the mental hospital haveing mental episode after episode after literally trying every mental drug on the market at the time. he had gone to the state mental hospital 5 times but after his worst episode where he teared up the house to where EVERYTHING was on the floor every chair table and bed was flipped over and nothing was on the shelves and during all this i was outside in the car listening to him yelling and cussing and everything breaking and when my mom tried to call the police he got on her and tried to take away her phone and he through it on the ground and it shattered into a million pieces and he stomped back inside and continued to wreck the house so he got sent back to the state hospital and during that time my mom found another guy and she cheated on my dad and she was gonna divorce him for this new man! she didnt hardly pay attention to my lil sis and i it was all about her boyfriend who HAD A WIFE! i honestly thought i would never get my real dad back again and i was in a depression during the whole time my mom was cheating on my dad i would cry myself to sleep every night and nothing interested me but i managed to go to school and put on this fake smile and act. she had no idea how much pain i was in.....im about to cry just thinking about it but we finally found a medicine that worked for my dad to where he was sane and the man my mom was cheating with she found out was a man and had tons of other gf's but have you thought of suicide and if so why??????