Zikr & Dua

Q: A trend has appeared where books are given for writing durood. Should a person use these books?

Q: I am facing some health condition like physical and mental, both are disturbing me for a few weeks. 

I saw dream where I'm very sad about my health and confused. Someone came to me and said Recite Darood pak for 125 lakh. Should I recite and how do I recite alone 125 lakh. I have to see to my kids.

Q: Can you kindly explain to me why meeladun Nabi is bidat and khatme khawajgan is not.

Q: There are some specific prescribed Zikr by the Ulema and Mashaykh which are called "Wazifa". These are certain Azkaar of reading a Dua, or Ayah of Quran or the names of Allah for a specific number of times in order to achieve something. 

My question is that, do we have evidences from the Quran, Sunnah and the practice of the Salaf on practicing these prescribed Azkaar? Can you please list them in detail with references.

Q: Tonight I got up to pray tahajjud and when I started praying it felt like a tahajjud prayer though when I went into Sajda, I didn't feel the connection I thought I would, like I went to Allah in taha while crying and when I started praying all my tears were gone, I wasn't able to cry in my sujood. Does this mean I didn't pray it right?

As I checked that I did my wudu right and covered up my self right though still I feel something was missing.

Adding to that, I'm one day away from my periods and I also thought that the crying part was just from my mood swings which are a symptom of our period coming, because when I stood on the prayer mat all the tears went away.

Moreover, I had weird thoughts during the prayer like I wasn't praying right and had alot of skulls appearing in my thoughts (jinn like thoughts). Please share if there is a problem in this or am I just overthinking?

Q: Why must we recite abundant durood on Nabi (sallallahu alaihi wasallam)?

Q: In the hadith below, do we have to recite this particular durood or can any durood be read.

Reciting One Hundred Durood after Fajr and Maghrib

Hazrat Jaabir رَضِيَ اللَّهُ عَنْهُ reports that Hazrat Rasulullah صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ said, "The one who recites one hundred Durood upon me immediately after performing the Fajr Salaah, before speaking, Allah تبَارَكَ وَتَعَالَى will fulfill one hundred of his needs. Allah تَبَارَكَ وَتَعَالَى will hasten the fulfillment of thirty needs (in this world), and Allah تَبَارَكَ وَتَعَالَى will keep the fulfillment of seventy in store for the Hereafter, and similar will be the case if one recites the Durood after the Maghrib Salaah (i.e. one will receive the same virtue)." The Sahaabah رَضِيَ اللَّهُ عَنْهُم enquired, "How should we recite Durood upon you, O Rasul of Allah صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ?" Rasulullah صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ instructed the Sahaabah رَضِيَ اللَّهُ عَنْهُم to recite the following Durood one hundred times:

إِنَّ اللَّهَ وَمَلئِكَتَهُ يُصَلُّوْنَ عَلَى النَّبِيِّ يَأَيُّهَا الَّذِينَ آمَنُوا صَلُّوْا عَلَيْهِ وَسَلِّمُوا تَسْلِيمًا اللَّهُمَّ صَلِّ عَلَى مُحَمَّد

Secondly, when reciting this durood, do we read the ayat as well or only اللَّهُمَّ صَلِّ عَلَى مُحَمَّد

Q: In sunnah and fard Salah, what duas can I read in sajdah?

Further, in nafil salah, can I make dua in English in sajdah?

Q: What is most favourite name of Allah of Himself? I want to approach Him with that name.

Q: I was in hardship and in a desperate situation. I wanted my dua to get accepted so I asked God not to give me anything nor would I ask for anything in Jannah if God accept my dua. I think my dua got accepted but I feel a little regret. This is because I feel I'll lose out in the hereafter.

Can I do anything to reverse this? My life in dunya hasn't gone to plan and I don't want my akhirah to fail also.