First off, killing yourself shouldn't EVER be an option, so put that out of your mind, for good!
I asked a wise old 78 year old I know, what's three things you would tell a young person about life, he said; 1- never go to bed mad 2- don't sweat the small stuff and 3- things change-nothing remains the same.
Also, find a way to "not get so stressed", easier said then done. Google "understanding stress", I had no idea how stress actually affects our body until after my husband had a heart attack and I researched, our bodies are truly amazing.
One more thing, for migraine relief, try soaking your feet and hands in warm/hot water. The heat on your extremities pulls the blood from your head relieving migraine.