The efficacy of God’s name is well-known. It saves us from all sins and bad tendencies, frees us from the cycle of births and deaths. There is no easier sadhana than this. It is the best purifier of our mind. It requires no paraphernalia and no restrictions. It is so easy and so effective.
You must bear the fruit good or bad-of your past actions, if it is incomplete, suicide won’t help you. You have to take another birth and suffer again, so instead of killing yourself, why not suffer for some time and finish up the fruit of your past deeds and be done with it once and for all?