I am sorry to hear that you are having problems dealing with the day to day challenges of managing your diabetes. As a person with type 1 diabetes for the past 62 years I would like to reinforce many of the suggestions others have given you and say that you can do it.
1. Find out if your local hospital has a program that provides you with the tools you need for the day to day management of your diabetes. Program might include discussions of carb counting, exercise, medications, etc. I have found exercise to be very important to treat blood sugars and days when I’m feeling down.
2. Find out if there is a diabetes support group in your area, again you might try the local hospital. Sharing your experiences face to face with other persons with diabetes can be very helpful.
Finally good control of diabetes does have an impact on diabetic complications. My father had type 1 diabetes and did not care for himself. He was legally blind and died from cardiovascular complications when he was 41 years old.
I am 77 years old and have managed my diabetes for the past 62 years. I have minimal complications (glaucoma, cataracts) and still lead an active life. Has it been easy? No, but you can do it too! Best wishes