Performing Salaah with a wound

Q:

  1. I had a scratch on my knee which I thought was almost healed. However, at the end of the day, I noticed many small spots (which I assume was discharge from the wound) on my pants and kurta around the knee area. I do not know when this occurred, but it is likely that some of the discharge occurred while performing sajdah. Do I have to repeat all salaah/tilaawat for that day?
  2. If one covers a wound with a bandage, and blood may or may not flow onto the bandage, would it be permissible to perform salaah in that condition, or does one have to be certain that the bleeding has stopped?
  3. Referring to (2), can one lead the salaah in that condition?

Superstitions

Q: Is it wrong for a wife to go home on Tuesdays and Satardays as we know the jins are spread everywhere in these days so there is a fear of possessing jins?

Performing Hajj as soon as one has the means

Q: I have the health and wealth alhumdulillah to preform hajj. But I'm 16 and the Saudi government doesn't allow anyone aged 16 to come without a parent or mahram. And I don't have any family I can go with. And my parents don't allow me to go with a group. And my parents say they can't come with me they don't have the money. Also my parents say if you get severely ill due to the heat or flu or temperature who will take care of you, so my dad said to me wait one year and I'll earn money to go with you next year. What should I do, will I get sin in delaying my fard hajj? Should I wait one year?