Om Apadam apahartaram Dataram Sarva Samapadam
Loka Bhi Ramam, Shri Ramam Bhuyo Bhuyo Namamyaham
This Rama mantras is regarded by Thomas Ashley-Farrand as one of the great healing mantras and one which is especially good for alleviating mental and/or emotional problems. Yes it's long, but I have found it's effects to be very interesting indeed. I've even had a very long and emotional past life flashback while chanting this one so don't underestimate the effects these mantras can have. Also remember they are working on levels that most of us can hardly perceive. Some effects you will notice at the time, others may only become apparent later.