I am trying to quit weed, do I need to do a ghusl and change my clothes to pray?

Question: I pray 5 times a day but I have a very bad habit of smoking Hash (weed)

Can I smoke a shisha pen? It’s similar to argeeleh or the hookah

Question: Nowadays a new trend is out for this the shisha pen, are we allowed to do this?

Apparently pig blood is used in making cigarettes. Would this make smoking haram?

Question: It has recently come to my attention that pig blood is used in the manufacturing of cigarettes.