I have been fine for a long time, well 5 months. I haven't thought about complications at all. For some reason today that is all I can think about! I have a 3 year old and a 1 year old and I can't stop thinking that I won't see them graduate! I've only had diabetes for 7 months and I'm thinking down the road, years and years away.
It's easy to get overwhelmed. I have been there man. The thing you need to realize is that the disease is under your control. Unlike other conditions, (I.E. Cancer, AIDS, Etc..) YOU have the ultimate control over the progression by what you eat, how you exercise, even how you react to stress.
I speak from experiencing anxiety and depression after my diagnosis. I also have a 4 year old, and it scared me for a while. I almost couldn't leave the house!
BUT, because I have the ultimate control, there is that comfort. I can maintain my BG levels SO I won't have complications down the road. I can be the one that has no complications, and I WILL see my son graduate, get married, etc. I will do everything in my power to let that happen.
Aside from that, I have no control over anything else that happens in life. Concentrate on what you can control, and make it the best.
I hope that helps out.