He is suffering from serious waswas

For some months I have been having a problem with waswas in both my prayers and when performing wudu (ablution). I keep forgetting what I have washed in my wudu and keep forgetting how many raka’ah I have prayed. It has reached a point where I am making sajdah as - sahu (prostration for forgetfulness in prayer) for every single prayer because my mind always strays. The more I concentrate on my prayer, the more it occurs. Sometimes I think I must have prayed 6 or 7 raka’ahs (units of prayer) for a four raka’ah prayer because I simply cannot recall how much I have prayed and so I continue until I am certain. The more I do this, the worse the problem gets. I want to ignore the waswas, but I am not sure if this is sanctioned by the sharee’ah (Islamic law). I feel it is the only way to rid myself of this disease. I read surah al-Baqarah and many du’as (supplications) related to the whisperings of shaytan and surahs al-Falaq and al-Nas. With regards to wudhu (ablution) I have a combination of problems as I feel that I have not washed properly after using the bathroom or if my clothes get wet that there is something impure on my clothes. When making wudu, I feel like I have not washed properly. I try to ignore these whisperings but I am terrified that if I ignore it and I am wrong, that my prayers will not be answered. I have reached a point where my prayers can take up to an hour or more to perform and have become merely a ritual without any khushoo’ (focus) because of these problems. I finish one prayer and start fearing how I am going to manage to get through the next one. I feel I am trapped because there is no way I can miss a prayer as I know this is exactly what shaytan wants me to do. Please help me, may Allah reward you.