So, you need to start by reciting Surah Ikhlas and Durood-E-Ibrahim as frequently as possible just after just about every obligatory prayer (Namaz). Then it would help for those who repeated "Wala Houla Wala Quwata, Ila Billa Hil Aliyul Azeem" at the very least 1000 periods each day. Remember https://youtu.be/a38LjaNq87E