Any tips greatly appreciated.
I''m sorry this has happened to you, though the good news is that a T1 on insulin has a
lot more freedom on food choices than a T2 whose only choice is to reduce carbs or go on an ever increasing cocktail of meds. If you want to go low carb you can, but you really don't have to.
A few tips....
1) Getting the hang of T1 is a long haul, be patient
2) Hypos. Never go anywhere without some sort of hypo treatment with you (glucose tablets, jelly babies, whatever works for you....) It's up to you whether you tell the people around you that you have T1, but I always found it really useful that friends, family and work colleagues always knew about hypos, so that if I became confused they knew what to do (give me something sweet).
3) Rotate those injection sites.
4) Insulin regime. They've currently got you on a fixed dose regime where you have to eat the same amounts at the same time of day to match your insulin. That's quite common for new T1s but quite restrictive. Long or medium term, when you've got used to injecting and carb counting, and know how much insulin you need, you may want to try a basal/bolus regime where you alter the amount of insulin to take account of when and how much you're eating. (There are also insulin pumps if you want to go higher tech).
5) Continuous glucose monitors. Basically you stick a sensor in your skin and you can use a reader or your phone to get a blood sugar reading without additional finger pricking. They are expensive, and depending where you live you may or may not be able to get funding for them (criteria in the UK is quite strict) but they do work very well for a lot of people (less well for some) and can be a big improvement over blood tests. The one handed out in the UK is the freestyle libre, but you're probably better off investigating this after you've got used to your blood testing meter.
6) These forums. Awesome for mental support, and information on just about any aspect of the illness. Plus, they are international, so there's usually someone around to post, though it's generally pretty quiet during the UK night.
Good luck, and welcome to the forums.