How To Have Hard Conversations

Brooke talks about relationships and whether or not they serve you anymore.

My question is how do I have a conversation with my sister whom I love dearly but it’s too much in my space?

She moved 10 houses down from me, shows up announced nonstop, sends her kids to my house, and calls me 10 times a day just to complain.

I love her so much but her negativity is bringing me down. If I say something to her she is very abrasive and defensive it would start a fight.

She also on the opposite end gets her feelings hurt really easily. I am not sure how to have this conversation or what to say?