Am I the only one having difficulties being a step mom?

I try to do everything possible for these two little girls and my husband. I know what I was getting myself into when we got together and I accepted it. But not everyone accepts me and that’s hard. I cook them whatever they want, I clean there room everyday, I wash there bedding after every spill and accident and still wash it once a week, I take care of there uh ohs, there boos boos and everything I can possibly imagine. I do everything for these little girls of my husbands but I’m the bad guy because sometimes I need a break from it all. I don’t have kids of my own, so when me and my husband got together it was a big adjustment. Where to this day I’ll go and stay with my parents for about five hours to recollect myself and not be so overwhelmed. Then I’ll come back from my parents house, but I’m the bad guy for needing space for myself. No matter what I do his kids don’t respect me at all no matter what I do for them they don’t respect me. They will scream at me, cuss me out, hit me, and everything else. They always say I’m not there mommy and they want there mommy not me. Which yes I know I can’t replace there mother. And don’t even get me on his baby mama. His parents constantly brings up his ex and it makes me uncomfortable and overthink, which makes me relent his family because it’s all the time. And he said there not doing it on purpose or to reconcile the past just to make conversation. Then of course everyone always mentions how there not my kids, they look nothing like me, there not my job, I could never be in your shoes, and it’s everyday of them belittling me. I’m just so sick and tired of it and being step mom is not easy. So step moms how do you handle this because I’m almost to my breaking point.

Am I the only one having difficulties being a step mom?
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