Faraaidh and Sunnats of ghusal

Mango string getting stuck between one's teeth

Q: If a mango string is stuck in my teeth, I did my best to clean my teeth before making ghusl mindful that all mango strings are taken out, after ghusl I read salaah and quraan. The next morning I ate thereafter I cleaned my teeth again and I found a small single mango string from my teeth. Is the ghusl, salaah and reading of quraan valid? The mango string is as thin as hair.

Waswasas regarding ghusal

Q: In ghusl of janabat water must reach under finger and toe nail? After every ghusl I get different kinds of doubt like water is not reaching in my mustache or anything. What can I can do? I suffer waswasas after every ghusl. I am facing a lot of doubt. In ghusal janaabat, if I forgot washing any part of the body what can I do?

Ghusal

Q: If I take a bath and clean my nose and mouth in a wudhu way, would it be considered to be wudhu? If so then shall the water reach all parts of my body while bathing? What about ears?

Nail polish

Q: I know nail polish prevents ghusal but what if I removed the nail polish but due to cracks in my nails nail polish gets stuck and doesn't come off even with a nail polish remover, will the ghusal be valid? The nail polish wasn't coming off so I thought since it wasn't though I tried hard my ghusal would be valid. Later today when I was washing my hands I found out that nail polish of the size of the needle tip was also left on two of my other nails including this one so I removed those dots. Is my ghusal valid? Then afterwards o cut my nails today and scratched the remaining stuck nail polish from the top of my nails first with a nail-filer then with a knife. I had to scratch off the top layer of my thumb nail in order to remove the nail polish. Do I have to redo my ghusal? I should have done the scratching yesterday after ghusal I know, but then I forgot to and only remembered after seeing it today. What should I do? Will everything have to made pure too?

Ghusal after a wet dream

Q: A guy woke up for Fajr prayer. After the Salaah he went back to sleep. He then wakes up later with a "Wet Dream", it happens to be on Sunday, so he decides to take his bath after washing his clothes. Unfortunately he forgot about the Spiritual Bath and does only the normal usual bath. On Wednesday around 8am he remembers that he didn't perform the Spiritual bath but have been praying for the past 3 days and even led some people in prayers during this period. So now what is the ruling on such a person? Does he have to pay for all the prayers he performed during that period? And what about the prayers of the individuals he led, will Allah accept their prayers? What if he had intended to offer the spiritual bath but forgot. Can the bath becomes his ghusal for jannabah?