Welcome to the forums.
Yes, feel free to have a vent. T1 officially sucks and some days more so than others. Most of us have bad days (weeks, years?) sometimes and then have to struggle on anyway. It's a shame that you can't "give up" T1 just as a smoker or a drinker can give up nicotine or booze (not meaning any insult to those who struggle through withdrawal symptoms for legal but addictive drugs.)
Personally, I hate hypos the most. I HATE HYPOS!!! (And then the hypers, and the days when you correct with insulin and NOTHING happens, and.....)
Whatever you've experienced with T1, you're probably not alone, as there are a lot of us out there.
ps I was diagnosed at 8 too....