Sleep pattern completely gone off course.

I’m just going to state the obvious but it’s gone cold again. That happens every time we think it’s finally warming up. Then it decides to drop suddenly and freeze us. I have the heating on half way and the electric blanket on. I randomly keep going cold at the moment anyway. The last time it went down to minus something my finger and knee hurt/swelled up until it went warmer. I don’t want that to happen because they’ve nearly got back to normal. I have a sleep pattern that is completely messed up. I’m letting other peoples actions get to me and really hating on myself for getting angry due to certain reasons which resulted in me being brutally honest with them and this made them walk away. You know the story. It’s not going to repair but it’s still hurting me.