Google 8 month sleep regression.

She is going through an intense period of brain development and will get better. I would honestly try and run with it because its very hard to get a cosleeping baby to sleep independently unless they're ready.

I would try and put her down in a pram or something near you when you have dinner. Or get dinner served in bed lol.

Does your other child cosleep too? Both mine sleep with me and go to bed at 7ish. They roll in and snuggle each other so I am able to escape after feeding ds to sleep. He did go through a phase where he would come looking for me after an hour or so, but it didn't last long (two weeks or so).

Good luck! It's hard when you feel like you have nothing left to give.