If you are sure that you performed wudu, the basis is that you have wuzu until it is absolutely proven that you don’t have wuzu. The same goes if you’re not sure if there is an impurity on your body, clothes, or place of prayer. 4- Worrying About Mistakes That is worrying about situations such as; whether you said subhana rabbiyal adhim or subhana rabbiyal ala in the last ruku or did one or two sujoods, etc. during prayer. Just put your mind on what you’re doing at present. 5- Being worried about Possible Future Mistakes You’ve perhaps experienced that anxiety of which chapter to recite after while reciting Surah Fatiha. You are so worried that you finish Al-Fatihah without realization of what you said. The easiest remedy for this is to select the Surahs before you start your prayer. 6- Uncomfortable Environment Let’s say it is 38 degrees Celsius and you’re praying with your fan turned off. How much khushoo do you expect to have? The companions had the talent of praying even during times of surgery, or while people were trying to depart from this world. However, we today don’t have much tolerance tendencies so the best is to make the environment comfortable, as much as possible. Indeed, Allah wants ease for us while we stand in front of Him.