You're doing so well, OP - just remember it's your job to keep your baby safe and secure, and that includes keeping a calm atmosphere around her (and you!).
When I had my first baby in the early 70s, some of my older female relatives were awful - constantly turning up at my house, wanting a "turn" of holding him, bathing him etc - some were resentful that he was breastfed, telling me he had a rash because of my milk and so on.
My own mother went on and on about routine when he was a newborn, telling me not to rock him in my arms...and then months later when he had fallen into a natural routine, she found it irritating if his naps coincided with her visits! I had to learn to stand up to her pretty damn fast and we had a huge falling-out when the baby was tiny - in the end, I said she was welcome to come and visit as long as she observed our family rules but that I wouldn't be visiting her until things changed (she was worse on her own territory). She accused me of "keeping the baby away from his family" and so on, but by that time I was so angry at her interference that I stood strong.
She stayed away for 3 weeks (yay!) and when she appeared again, there was no apology, but I noticed a difference in her behaviour from then on - I guess she recognised a new strength in me.
Try to get out with your baby and make new friends. Be busy - don't give them the chance to assume you're always around. If you and your husband want to lead a different - less traditional - sort of life, you need to establish that from now on. It will be hard work, because his parents will be used to having things their own way, but it can be done.
If there is no possibility of a reconciliation with your own family, you need new sources of support, so join baby groups or whatever you can, so that you're surrounded by other young parents - it will help you to stand strong if you see others living their lives as they wish.
Congratulations on your daughter - enjoy her! 
PS I confess we did eventually move away from close family - it solved so many problems and improved relationships no end.