Tahaarat

Q: I have a problem for the last 5 years. In a week many times after urine sperm comes out with urine so I cannot continue my prayer. So tell me if I need gusul or not?

Q: If one watches porn and can feel semen about to come out then he turns it off and he cools down then goes for urination will ghusl be fard?

Q: What is istihaalah? Especialy regarding products from pig?

Q: 

1. The splashes of water when washing our private parts in istinja is paak or napaak?
2. The water which wets our feet due to movement of our hand in these situations is pure or impure?
3. Our hand with which we have cleaned those areas if it touches our clothes will the clothes be naapak?
4. Once this happened and where I thought that my clothes has touched my hand, I washed it with water and offered namaz and after some time I began to think that i washed the wrong place. Now I don't know was my namaaz valid?
5. When we wash our hands aftr istinja and the sleeves fall down and it gets wet, do we have to wash our sleeves or not? 

Q: When I went to the bathroom I felt a splash of water or urine on my hand, I don't remember now. I didn't see it that time. I thought I will wash there but when I stood up, my sleeves fell down and I don't know where it was. 

My question is, is my sleeve napaak in both cases if it was impure water or if it was urine or if I don't remember what it was?

Q: At times when I take out a garment to wear from the cupboard, I notice some substance of najaasat on it (not just the trace), what is the condition of the other garments washed together in the washing machine. Many a times I don't even know which were the other garments as it was only noticed after a few days. And if I know which were the other garments, then in this case also,what will be the ruling?

Q: In toilet or istinga we should use lumps of earth 3 times or 1 or 5. And we heard that the method of using earth is different for cold season and warm season. In cold season the prostrate glands are compressed so first earth should be pushed from front to back and second from back to front and third from front to back and in hot season as to prostrate glands are loosen so you should use conversely. Is it related to sunnah.

Q: I need to ask a question. I am at a young age. I want to learn so much about my deen and get close to Allah but I don't know what's  happened. I've been watching a lot of porn and every time I watch it I have to take ghusl and in the ghusl Khana I get a lot of wasswas while making fard ghusl that's why I do all these odd ways to make all the hairs wet but when I finish my ghusl I get extreme thoughts like your going to go hell because your ejaculated by watching porn and this ghusl is not correct that you have made and all that fard ghusl is all I think about every single day. Thats all I think about 24/7. I need help.