بسم الله الرحمن الرحيم
A person who is enriched with the dignity of religion and wealth of iman he has waswasa as the moth flock around the light and the thief steal where there is wealth. Hence you should not be worried about it and do not feel tense. Perform your taharah, namaz, fast as per the Shariah ruling and when you have waswasa or satanic doubt, you must not pay any attention towards them, in-shaAllah, then it shall automatically go away. Also recite the following:
لا حول ولا قوة الا بالله العلى العظيم
لا اله الا الله ، الله اكبر
Do not pay any attention towards the waswasa at all.
It is a matter of reward virtue to recite the duas which you have written but do not recite them with the intention of removing the waswasa.
Allah knows Best!
Darul Uloom Deoband