Venting to anyone at this point....

My husband and I have been married for almost 2 years now and we have been together for 4 years. Im 24 and he is 32. We have two kids that were from his previous marriage. So im a step mom. They are 7 and 8. And over the last year we decided to move hours away from family to try and see what else life had for us. We have to work completely opposite schedules to always have someone available for the kids if they need anything. And we hardly ever see each other. We have had this life for the past 9 months and now i feel it is starting to strain our marriage. Lately when ever we see each other all we do is fight and argue about something to do with the kids. Whether its school or behavioral problems. I have always had a fear of hearing from the kids "your not our mom!" And lately I have had a bigger fear of hearing it from my husband...he hasn't yet said it and I doubt he ever will. But im just worried that that's how they feel. I always think back to how my mom raised me and her parenting and I try to go off that. But everything I do like ground the kids or give them a chore as punishment seems like it is tossed aside and my opinion doesn't matter. Im now getting to a point to where I don't really care anymore and i have told my husband I guess I will just stop parenting completely and leave everything up to him. Im now really depressed a lot and really not happy. I keep thinking maybe if we moved back closer to family and got more time together things will be ok again. But he absolutely refuses to move back. I can't quit my job because we have too many bills and other expenses. Im mostly just wanting to vent and maybe if anyone has advice I would greatly appreciate it.