So, you should start out by reciting Surah Ikhlas and Durood-E-Ibrahim as usually as is possible following every compulsory prayer (Namaz). Then it would help in case you repeated "Wala Houla Wala Quwata, Ila Billa Hil Aliyul Azeem" not less than one thousand moments everyday. Remember to do Astagfar for all the bad sins you probably did up to no