Hello Foxy,
Big hug, sounds like you need it. Tight control and being concerned, how ridiculous, you should be commended for tight control, this is what we are always being told we should do, to achieve this for me would be nirvana in my control. Please try not to worry about the future though try to enjoy living in the present, being diabetic and thinking about the future isn't a good way to live your life and it sounds like it's getting you down, make plans today and do stuff today. I've been diagnosed about 4 years now, been on my own personal roller coaster, I have my own coping strategies for this, one is to be more compassionate to others, diverts my thinking if you know what I mean, I also do charity stuff so doing a tesco diabetes fund raiser in a couple of weeks, planning my next JDRF challenge, now started keeping bees.
What I'm getting at is give yourself some small challenges you can accomplish that help you feel better. You can always work and holidays will happen, live in the present and you will a lot better, you have done brilliantly so far so don't let anyone get you down