Does anyone know how to get 8th month old to sleep because she is way too much hyper and will not go to sleep at all

Do you have a routine same time every night and use nighttime baby wash and lotion? That definitely helps

Sometimes at that age they get overstimulated.

Turn off all lights get quiet.

No TV or screens. Read a book to mellow her out.

Bath , book quit time for about a hr before then maybe cuddles and lay her down she will have to figure out the rest