I love my mom but can’t stand being around her

Anyone have any tips on how to make being with her bearable?

I feel like a terrible daughter for thinking this way because she loves me so much and she’s made her entire life about me all she does is complain, she’s so nosy, so negative, there’s always something wrong and she’s so sensitive. If you ask her how her day is, without fail she’ll say “not that good” and it’s always about something that’s not a big deal at all and she’ll still choose not to fix it. She’ll talk bad about family members. If I don’t want to eat something she buys or mention that I don’t like a brand she’ll get mad because “I think I’m too good for this family.” And if I try to mention any of this to her (in the nicest way possible because I know how sensitive she is) then she’ll start crying because “she’s a terrible mother and not good enough for me.” Mind you I have never said anything like that to her or anyone because that’s not how I feel at all. She’s just A LOT.

This has caused me to separate myself from her so I can be my most positive self around her. I’m currently staying at her house for a few weeks as I was gone for over a year and I’m honestly just doing this because I know she wants me here. I leave next week and will be gone for at least 2 months. I really don’t spend more than an hour total with her per day but I still loathe it. Help me be a good daughter 😭