Hi @turquisecheese, and welcome to the T1 club.
I agree with JuicyJ, it’s best you ask for the help of your Diabetes Nurse, or the doctor(s) who are looking after your diabetes.
Yes, high blood sugars at night are a complete pain, and they make you feel bad.
I don’t know what insulin you’re using, or how your blood sugars have been since diagnosis, but it may be that things have been changing for you. There’s something called the honeymoon period which is the time during which the body’s ability to create insulin gradually declines. If your nighttime blood sugars have become higher since diagnosis then this may be the cause.
However, there are a number of other things that can cause nighttime highs too, and we can’t diagnose these for you so it’s best to ask the team who are looking after your diabetes. Ring up and ask to speak with them as soon as possible?
Good luck, and I hope it’s resolved for you as soon as possible.