Damn that is a tough course load! No wonder you're stressed. Take it one day at atone for now. I always found that making a schedule of homework in my planner helped me loads in college. Hell I still do it now in my job. It helps keep me focused and keeps my stress level lower by delegating what I have to do each day.

I'm very glad you couldn't follow through with jumping in front of that car. Keep talking to us and try to do some mindfulness exercises to help you stay focused on the present instead of worrying about the future.