Co-sleeping with a 2year old

Just a little back story.

My whole family has been living seprate at one point me, my brother, my mom and my stepdad had seprate apartments in the same city.. The back story on thatbis even longer lol

Eventually we all agreed to move back into a house and fast forward to today.

My daughter and I are sharing a room but there is not enough room to build a crib. My mom is so adamant on my daughters crib being placed in my 8 year old nephews room..

I dont want this.

don't want my daughters sleep to be disturbed.

If my daughter is up before me I don't want anyone to take care of her, we have a routine and I want to stick with it.

I am her mother and I didn't move back in here to have someone else take care of my damn kid when it's not needed.

I can already see how this shit is going to go and I'm starting to regret my decision on moving into this house.

I have a queen size bed. I plan on selling my queen set and getting a king around tax time. I also know you can buy gaurds for the bed to prevent falling.

Am I overreacting?