First, you probably need to contact your doctor and see if they can help.
I was misdiagnosed for years, I was happy to find out I had type 1, not because I had type 1 but because it explained everything that had been going on. I was happy to finally know. This disease is completely treatable by a tool we have that's called insulin. I eat what I want (I am a strict vegan) I just have to dose for it. Don't be scared of eating, just start to learn how to dose right.
I literally really eat what I want, I have an A1C of 32. It's easier for me as I'm retired now, but you can learn to control it, don't let it control you.
Losing weight is from not eating enough, but it's also from possible poor control and not actually being able to use the food you eat? Depression is unfortunately more common with diabetics and is made worse by high blood sugar numbers, lots of people say they end up feeling much better once their numbers are in more normal ranges. Sometimes it helps to have a goal in mind for what to do?
I don't know what your numbers are like right now to suggest specific things, but I bet if you start out by learning to carb count so you can have some leeway in how you eat, it will help. So make that the goal, start carb counting and keeping a log to show your doctor, get set up with a diabetic educator so you can learn some better control measures and at least you will be on a path to improvement. Just not eating won't cut it. Your energy will drop, your insulin will be off and that won't help you.
Big Hugs, I know it's a shock, but honestly it's a shock that has an easy solution, insulin.