What is the cure for obsession (waswas) and anxiety?

Answer

In the name of Allah, trust in Allah, apply the Sharia to your actions, words, and thoughts. If you experience such feelings while not in prayer, say, my daughter ,"La hawla wa la quwwata illa billah" (There is no power nor strength except with Allah). If you are in prayer, you should avoid uttering it aloud and suffice with the intention only. Allah is the Grantor of success.