For 37k i wouldn't bother registering for VAT unless your going out buying a New van or other big purchases.
You can always register in the future if need be.
I'd consider getting a good accountant though.
Their a good go between, between yourself and revenue.
P.S. A good accountant needn't be an expensive accountant. My accountant charges me less than 1000 a year because she knows I'm struggling. And she does some handy non accountant extras like going to court with you if need be. I haven't been to court yet though