Being harassed by a gym instructor

Q: A while before I got married I used to train at a gym. The instructor, a male, had a lot of other males and females in this class. At the time I knew that training in a mixed setting was haraam but I was ignorant and am still trying to repent for this sin. I stopped training after 3 months and then got married 2 years later. Now, after 2 years, the instructor keeps harassing me and making false accusations of me having an affair with him. All this time before I got married I had no contact with the gym or trainer and did not even hear from this trainer. Alhumdulillah, my husband can see that this is nothing but harassment and that I did not commit that sin. I however feel as though I did commit the sin by just being in the presence of men in a mixed gathering and training. He is accusing me of a whole load of false accusations which I did not commit and I have tried to get legal help but the more I fight back the more out of control this situation becomes. I am really afraid that people are going to find out and assume the worst even though I did not have an affair. Please can you advise me accordingly.

Correct tasbeeh after salaah

Q: What is the correct zikr to recite after each salaah

1. 33x SubhanAllah

33x Alhumdulillah

34x Allahu Akbar

Or

33x SubhanAllah

33x Alhumdulillah

33x Allahu Akbar

1x Laailaaha illallahu wahdahu La sharikalahu lahul mulku Walahul humdu wahuwa ala Kulli shayin qadeer.

I am confused as I understand both are mentioned in the hadith. Which is the correct zikr to recite after each salaah.

Making dua for someone in his absence

Q: One of my cousins is on the wrong path and I'm very concerned about him. He talks to many girls, and plays with their hearts, just like today's modern society's bad guys. I would want to know of any wazifa or surah to recite on him for him to be guided on the right path. I do recite verse 8 from Surah Aal Imran over him often and pray for his guidance regularly. I want to know any other surah or dua too.

Will one receive the reward of fasting in Zul Hijjah if he keeps qadha fast in the first 10 days of Zul Hijjah?

Q:

1. If a person has fasts pending for a vow that he has made without him having specified the date, can he fast these fasts of zul hijjah or should he keep those fasts first?

2. If he has to fast for his vow in these 10 days will he acquire the sawaab of the zul hijjah fasts? Also if a woman fasts ramadaan qadhas in these days does she get the sawaab of zul hijjah fasts?

Conveying the reward of one's waajib qurbaani to many people

Q:

1. When a person performs one’s personal obligatory qurbani, for example one sheep, and intend donating the reward to the Messenger of Allah (sallallahu alaihi wasallam) or some other deceased individual, will the person performing the qurbani and the deceased get the full reward of qurbani?

2. In the above mentioned situation, when performing one's own obligatory qurbani like a sheep, can the reward of the qurbani be conveyed to multiple people (deceased or alive)?