Need to vent

So I can’t seem to get my 8 week old to go to bed before 11:30 midnight 😫 the past 5 nights she has slept 7+ hours straight but again not till midnight ( which sounds great but gave me crippling anxiety because I knew it was not going to lay so I didn’t sleep) Fast forward to tonight and It’s now 4 am and we have been trying for a month now to get her down earlier starting bed time routine at 9 and it’s not working, she also for over a month at 10 cries anywhere between 10 minutes to over an hour and is not consolable. tonight I have failed I am exhausted and I ended up driving in my car leaving my fiancé with our baby because I have not left her side and for some reason tonight has really gotten to me, I couldn’t console her and I just needed 10 minutes of silence and instead now I’m in my car crying. I don’t know what l plan to get from this I guess I just needed to vent some where if you read this far thank you