Hi Reece, you sound so much like I used to be when I got to an age of managing my diabetes myself and changing to the clear insulins from the old fashioned cloudy ones.
I've skimmed through some of your replies and it sounds like you are managing to make improvements which I hope is just going to keep getting better and better for you.
In my teenage years I injected if I fancied it and hba1cs were always very high and the biggest motivator for me to start looking after myself was finding out I had retinopathy in my eyes due to poor control. The thought of losing my eyesight and also an admission into high dependency due to Dka and being told if I'd have been hours later I would be dead was enough to make me realise if I don't start looking after myself I was going to be dead or blind.. At 18 19 20 who really wants that?!
I'm on a pump now and I feel like I've been given a new lease of life, feel much happier, less restricted in what I can do or eat and don't have to worry about doing my background injections just literally out my carbs in when I eat and I absolutely love it. Had hba1cs as high as 13% and now down to 6.3%
If you are truly wanting to do it and your heart is in it, you can, and you will feel the biggest sense of achievement and pride when you get it under control.
I know it's hard work and such a chore but the gift of your life/eyesight/health is so much better fir you than not being bothered about your diabetes. I often think how lucky I am to have a condition that is controllable and try and focus on that to keep me going. I hope you can find the motivation to make the changes to your life you need to, it will be worth it in the long run I promise!!