Mom’s perimenopause is bringing back her old temper

Hi all, I just wanted to ask for some advice. My mom is in perimenopause, and recently I’ve noticed drastic changes in her temper. She suddenly gets in a bad mood, yells at me and gets annoyed by pretty much everything. I don’t really know how to handle it.

She used to act like this when I was very young, but as I grew up, her temper became much (a lot) softer. She used to be a very sweet and emotionally stable person. Seeing her go back to this state is honestly making me very sad because it reminds me of how things were when I was little. I consider myself emotionally unstable, so watching her like this makes me feel really depressed.

Any advice on how I can help her get through this phase would mean a lot. Thanks