Shaving the hair after umrah and hajj

Q:

1. Please share your views on how one should spend his days in Makkah/Madina, which is the best ibaadat (tawaf or multiple umrahs or nafl prayers)?

2. Does a pilgrim get same reward of shaving hair if he does Umrah or Haj? Or as Haj is a bigger pilgrimage, shaving hair in Haj has more reward?

3. If a person does Haj-e-tamattu and has plans to perform more than one umrah before Haj, should he shave his head on all times?

4. What if a person has very few hairs as he has done many umrahs before Haj, and uses the razor on Haj, do we get same reward?

5. Also, is this saying true that for every single hair there are many blessings, the more hair you remove the more blessings?

Removing a unibrow

Q: When removing unibrow, how far back can it be removed? Should it be removed just until it doesn’t cover the top of the nose or can it be removed till it’s at the top of the corner of the eyes?

Regret for speaking harshly to one's mother

Q: I am 21 years old. I love my mother but I spoke harshly to her today relating to my marriage issues and she cried. My father died when I was young and she alone raised me. I've hurt her today very badly. I've said sorry to her but I just can't get it out of my head that my mother cried because of me. Can you please tell me what should I pray to erase this mighty sin off my shoulders?