I’ve been T1 for two decades and a;art from maybe the first two months, a year when I was pregnant and since last Christmas, my control has been appalling., I had an HbA1c of 131 a few years ago. It’s never too late to get to grips with it! I don’t think I have much by way of permanent complications - a little numbness in my toes which is receding now I’ve got things under control, all my other tests have come back fine. My shoulders had frozen up a bit, but again, they’re much better now, as is the trigeminal neuralgia I suffered that nobody realised was a neuropathy.
First up, try not to regard numbers as “good” or “bad” - they’re just data that we may or may not need to act on, not a judgement. Second, if they haven’t gone too far, many complications can be reversed. Third, all T1s get daily swings, as do non-diabetics (within a range). The only ones who don’t are the ones who follow a very, very low carb diet and dose very accurately, but this is very intense and doesn’t suit everyone. I personally follow this approach, mostly to try and make up for the years of high sugars, and I still get small swings in levels. But there’s many here who can eat a mainstream diet and dose accurately for it. Fourth, rather than aim for 7-8 long term, make more normal BG levels of 5-6 your eventual goal, as you’re far less likely to have any issues if you do. Set 7-8 as an interim target, and then go from there once you’re comfortable. It’s great that you have your basal sorted, as that’s the foundation everything else is based on.
What’s your current treatment regime?