Impurities on clothing and furniture

Impurity on one's shoes

Q: It was raining outside, the sole of my shoes were wet, they touched the top part of my other shoe. The shoes are made of absorbent cotton material. I understand that doubt cannot uplift certainty. But I know that I must have stepped on some kind of najis some where so I think the top part of my shoe became impure, but even if I did there was no trace of it. Also before I stepped on my other shoe I walked for a bit on wet ground, would that have cleaned up the sole of my shoe? I suffer from waswasas as well.

Wears slippers with pigskin soles

Q: Someone wears slippers with pigskin soles. If he now takes off the slippers and walks on a carpet, does the carpet becomes impure? The person was wearing socks with slippers that were not wet, but as you know the socks get kind of humid/ from feet heat when wearing/walking. Does such dampness (without actual wetness) transfer the impurity or must it be real wet?

Urine problem

Q: I m suffering from an illness of urinary dribbling (urine drops coming out). I want to ask you that if I am out of my house and after urine I feel urine drops, can I wash the affected area of cloth with water for Namaz or I should have to change clothes for Namaz?

People who consume alcohol drinking from one's utensils

Q: I have asked this question before but I was still in some doubt. I live in a country where people openly drink and if my friends and all use my glasses and spoon after drinking should I consider them impure. I'm getting paranoid over this issue. Also if after drinking they have eaten or had drunk water and then they use my utensils will they still be impure. When we wash impure utensils in sink we usually don't see any impurity but it's just water that splashes from washing. Should we Consider that water impure. A dry particle from private part discharge fell on carpet. The carpet was dusted where that particle probably fell on floor The floor was then mopped. Should I consider the floor clean or is it impure as it was mopped. Due to this I cannot pray.

Impurity on a carpet

Q: I felt like a dry particle from the private part fluid discharge fell on the carpet. I am not sure as I was checking my pants for wetness and felt that maybe a particle fell. I dusted the carpet and now I feel that maybe the impurity fell on the floor and now that I have mopped the house the whole house will be impure. Please help I'm in a lot of doubts and I keep cleaning as I feel everything is impure. Also if someone takes a shower in my tub can I consider the shower place pure.