Waswasas and doubts

Q: Please advise on any action to be taken or moreso specifically any Duaa to be read for protection against the evil whisperings of shaytaan which often occurs whilst reading Salaah or Quraan and as well as other acts of Ibaadaat. These evil thoughts are of a grave nature which is really bad but constantly comes to mind when reading Salaah and other Ibaadaat Salaah. As much as I try to ignore them, the more it occurs.

A) is Salaah valid if these thoughts cpme to mind whilst reading Salaah?

B) how should one avoid them? I also experience plenty of doubt so much so that sometimes I read the same Salaah couple of times.doubt is about if i read a Surah after Surah Fatiha, did I recite property, did i sit for Tashahud, did I miss a rakaat? I also experience lots of doubt whilst making wudhu?

C) how should these doubts be ignored?

D) with regards to Salaah, if i have doubts if I read a Surah after Surah Fatiha or if I read Tashahud, what should I do?

E) if I feel I read but in actual fact I never read at all, will my Salaah be valid?

F) with regards to Wudhu, if I doubt I broke Wudhu and I try to ignore the doubt, and feel that I did not break Wudhu, but in actual fact I did break wudhu and I read Salaah, Will my Salaah be valid?

G) If Salaah is read while evil Haraam thoughts cross the mind, Is the Salaah valid? Before I used to read Quraan and Salaah with ease, nowadays I feel it difficult due to the above, please advise on any course of action to take to remove them.

Organising a monthly Qur'an khatam on whatsapp

Q: I am part of a whatsapp group and we have decided that rather then just chatting and posting articles and news, we can do some good deeds together as a group. So alhamdulillah we have started a monthly Quraan Khatam. There is absolutely no force on those who can not manage or be part of the khatam. If anyone cannot manage their para for the month it is passed over to someone who can recite it. After the khatam is made we make the intention of isaale thawaab for all the marhoomeen. After a few months of this khatam which was going very well, somebody said to me that this practice is bid'ah as we have stipulated a time frame of this amal to one month and that we should stop this practice as it has no basis in deen. He also mentioned that our actions needs to be done with sincerity and not for show so it should not be done as a group. I do not want to perform any innovations in deen and I am really concerned. Some of the members are such that if it wasn't for this monthly khatam they would not have opened the Quraan not only for the entire month but rather for the entire year. Should I inform the members of the group and stop this practice or should it be continued?

Business started with haraam money

Q: I want to know that is the profit made through halaal business that was initially started by haraam money is halaal or haraam to use. Example: If I use haraam money and start a halaal business and I earn some profits from that business so that profit is halaal or haraam? Please let me know the Islamic rulings about this issue.