Questions about example sentences with, and the definition and usage of "Redecorating"

A: × I’m redecorating my bedroom.
✓ I’m currently redecorating my bedroom.

× I decided to renovate my room because it is not fashionable for today, it has ugly blinds, stained mattress and carpet, crooked walls and the worst thing is that I have to share it with my younger sister.
✓ I decided to renovate my room because it is not fashionable anymore, it has ugly blinds, the mattress is stained and so is the carpet. Moreover, the walls are crooked and the worst thing is I have to share it with my younger sister.

× The room wants to have a different color than before, change the whole decor and especially the carpet and mattress.
✓ I want to paint my room a different color, to change the whole decor, especially the carpet and my matress.

× I also write because I would like you to come and rate the new room.
✓ I’m writing you because I’d like you to come over and review my room’s new look.

× The room will be ready in about a week, I will let you know soon about the meeting.
✓ The room’s going to be ready in about a week. I will let you know soon about the meeting.