Critical spouses

My husband and I have been married about a year and a half, and we have an 8 month old baby. He's in the military and I'm a SAHM. We dated for over 3 years and we're pretty young. Our entire relationship he's always seemed very chill and laid back. However now that we are married he is so critical of EVERYTHING I do! I can't do a single thing right!! He controls what I eat, how much I spend, I have to ask permission to buy things for our daughter even though we budget for her things. He is very controlling but not in an abusive way but more of an OCD way. He has major stress and anxiety about finances and what he's going to do when he's out of the airforce and so on. 
Anyways, how do I deal with his critical nature? Are you critical of your spouse? Is your spouse critical of you? About what things? Big things only? Or small things too? My husband yelled at me for leaving my phone charger downstairs because I'm "not responsible enough to charge it at night in our room". And the other day he got mad that I wanted a Coke because if I drink Coke apparently more than once every other week we'll run out too fast and have to buy more. Those things to me aren't a big deal but to him they are. I just don't know how to deal with him! I feel like I'm never good enough! UGH. 

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