Very negative complaining spouse.

I’m at my wits end completely. I am Not happy with this man anymore. I’m miserable. Everyday he’s complaining negative about anything and everything. Over nothing. Over accidents. He’s very very very strict on money. He makes good money, but it’s like no one can touch it but him. I’m a SAHM and I work PRN at my job. My job pays me well but I can’t work much cause I have 3 kids and lately it’s been a lot of issues, sickness, dr appts, broken arm, etc. Until things go back to normal I Cant work more then I do. He’s the main one working the one who makes more. He’s so so strict on it though. Whenever we go to the store he will hound my ass for anything. I won’t even buy it just tel him I like it and he’ll be giving me a lecture about how it’s too much. It’s ridiculous. 2 examples just tonight. We needed laundry soap, we go through alot of laundry there for the soap goes quickly. I last got some a month and half ago. I told him we needed to get some and he said “ your not doing it right you shouldn’t be using as much as the cap says” proceeds to Google it and the statistics and the proof in front of people and tells me I’m brainwashed and being scammed by these billionaire companies to use the amount on the cap!!! Like what the fuck bro. He was mad csuse he didn’t wanna spend money on laundry soap. Example 2. I dropped him off home and went to target for Christmas stocking stuff. I came home in a great mood super excited to show him and he asked how much the wrapping paper rolls were.. I told him 5$ each. I got 3 of them. I used my money to get the stuff from target.. and he literally kept making comment after comment after comment on why would I spend that.. you should have went to the dollar tree etc. then made a comment “ it’s a good thing I’m the responsible one when it comes to money…. Like I cant spend anything unless he plays the prices or he makes me feel irresponsible and like a child basically! I don’t buy anything for myself because I feel like I literally can’t. Then when he went to see my sons iPad battery to see if he could take it off the charger he sees that my son bent it trying to put it in so the cord wouldn’t charge. He went on a huge tangent to on how my son ( who is 6 ) can’t do anything right how annoying it is, he just bought that charger 2 months ago and it was literally 20$ and it’s already broken …. And I’m like it’s just a charger… it was literally an accident he’s a kid they make mistakes too…. Like why is it this big of a deal?! I’ll buy another one… it’s just not a big deal and he kept going on and on and on. This is everyday. He’s paying off student loans so it’s like he wants me to ask if I need some money but then when I do he throws his student loans in my face how it’s a priority and how he cant be giving me money how I need to be understanding and acknowledging how that’s a priority which I am!!! But he just spent 500$ on a VR. At least 100$ worth of VR games. He went out and got our 2 year old a 599$ motorized vehicle for Christmas just buys what he wants. He’s now wanting to take him and I to Colorado Christmas weekend to experience it cause he’s big on climbing now and skiiing. And that’s gonna be a couple thousand! He flips everything on me and makes me feel like I’m an issue. I’m at my wits end I Cant take it anymore. I need advice because at this point there’s no conversation without it turning into a major fight.