So, you should start off by reciting Surah Ikhlas and Durood-E-Ibrahim as frequently as you can just after each obligatory prayer (Namaz). Then it could help should you repeated "Wala Houla Wala Quwata, Ila Billa Hil Aliyul Azeem" at the very least 1000 occasions day-to-day. Remember to do Astagfar for each of the lousy sins you did prior to now.