God could give you the strength, if you let him. It's okay if your own will power is insufficient to the task...
Dude, I have incredible will power. If I can't spare much of it to give up things like beer, it's just because it's mostly used up by the not killing myself.
These suicidal thoughts are not only sinful, but also unnecessary, my son. God loves you and wants you to be happy.
...
...WELL HE'S GOT A PRETTY FUCKING STRANGE WAY OF SHOWING IT!!!