What is a good bedtime for my 6.5 month old if she wakes up at 8am everyday?

My baby girl has been a terrible sleeper from the beginning. She wakes up 30-60 minutes after I lay her down for bed at 8pm every night and won’t stay asleep when I try to transition her from my arms to her bed. And if I manage to she is up within an hour whining/crying. The only way both of us are getting any sleep now a days is co sleeping and even though I’m getting sleep finally, I hate sleeping with her. I’m never rested because I’m waking every hour checking on her. My poor husband is scared he is going to roll on her so most of the time he is sleeping on the coach. I need help. Her wake windows and eating schedule seems to be pretty consistent during the day. Her naps are crap too most of the time. Only

Sleeping for 30 minutes or so at each nap and has 3 naps a day. If I go in and rock her back to sleep sometimes she will sleep another 30 minute stretch. I’m losing my mind and am this close to using the CIO method because I need her to sleep in her own bed and I said I would never use that method but I am now desperate. Her pediatrician had no helpful tips to help her sleep either. What should I do?