If you commit a sin, do not delay in repenting. Go all out in refraining from sin. I am summarizing the entire tasawwuf in two sentences. There are only two diseases that keep a salik away from Allah. One is jah (seeking status) while the other is bah [sexual sins]. Due to bah, one becomes overpowered by the nafs and becomes involved in casting evil glances, adultery and all sins of carnal desire. Jah is pride and arrogance and the desire to become famous among people. If a person removes these two illnesses, he will become a wali.