The main thing I would have said here has been mentioned already: Honeymoon period.
Your options at this point are probably (In my opinion):
- Limit & control your diet for the time being
- Register your interest with your clinic/care team regarding a DAFNE style course ASAP
- Talk to the care team about your concerns in the meantime
Controlling ("Limiting") your diet as a temporary measure will simply mean that the fixed doses you've been advised of will work better. It does however mean lots of the same foods/snacks for a while so it's not a good long term plan and also limits your lifestyle choices in a way diabetes shouldn't.
It definitely sounds like your honeymoon is over - so first of all sorry - to be fair as a spouse you kind of drew the short straw getting hitched to diabetes =P But as this period has now come to a close it means carb counting and the courses/skills attached to it to adjust your doses based on what you're eating and the impact of your diet on your sugars now an option you can explore! Whilst you can do these things off your own back and online etc, it wasn't until a couple of years ago I went on a DAFNE course after avoiding it for one reason or another for years and it did totally start to change things for me...it happened a bit too late to stop some of the more serious problems diabetes can cause from happening to me...had I known how to do the things I learnt on that course years ago, things now might be very very different - so get your interest registered and the second you can get on that course - DO IT =).
The main thing is though is that the clinic will not likely want you on that course until it's confirmed your honeymoon period is over properly (as much as it can be confirmed anyway) as carb counting up until that point is a real challenge due to the fluctuating levels of your own insulin that can interfere with your bolus doses - so speak to your nurse/doc/care team & get it confirmed, then you can take the steps you're looking to take to get some real control back.
The main thing to remember is, a few months here and there of high sugars by itself will not hurt you badly in the long run - ignoring those high sugars, assuming you'll be ok and not seeking advice/accepting help about it all will though - that's the mistake I made, and it's one you've already partially avoided by coming here =)