Just need some positive affirmation

Just laying in bed for a nap with my soon to be 1 year old on my chest right now and I keep thinking about all the negative things going on in my life right now. I’m a stay at home dad in a one vehicle household so we spend all day at home(too cold to go outside and do anything). The wife and I got into it a couple days ago(I’m 36 and she’s 33 and we’ve been married close to 5 years) and the past 48 hours or so it seems she’s been completely checked out and not sure when things will be good again with the wife. So the past couple days all I’ve been thinking about is how the past fight was definitely my fault(for those wondering, I asked a question at a Q&A marriage seminar at our church and she knew it was directed at her about workplace relationships). So yeah, these past two days the intrusive negative thoughts have taken over and no matter what I try to do, they won’t go away. Can someone let me know if they’ve gone through this and how things got better for them. Right now my anxiety is at all time high and the only thing keeping me from doing something stupid is the weight of my little one on top of me right now