What Is Wrong With Suicide?

If life is a matter of happenstance or chance, then ending your life when the going gets tough shouldn't be of much concern to anyone else.  But, on the other hand, if life is sacred and you were made by God in His image, then the decision to take your life isn't yours to make.  It's because life is sacred that most major religions have prohibitions against suicide.   But how does God view this?  If God has a plan and purpose for your life, would suicide ever be included in that plan?  Do things ever get so desperate that God can't solve them?