Insulin in free in the UK, plus I get any prescription medicine free (if it's prescribed through the NHS).
I use a hybrid closed loop system (Dexcom G6 and Omnipod 5). That is also supplied through the NHS. I don't pick them up from the pharmacy. I get them directly from the manufacturers. Basically the two work together (the Dexcom determines my blood sugar, the Omnipod delivers the insulin). They are worn on patches on my body (I place them such that they are always clothed, you don't see them from the outside). Some T1Ds express these more visibly, it kinda makes them look like cyborgs.
Usually I have my Dexcom just below my shoulder on my arm. It's high enough up that it's hidden if I'm wearing a short sleeve. My Omnipod is usually on my abdomen, on the same side as my Dexcom.
I only need to give my system a heads up when I'm about to eat something. I put in my numbers, push a button and it does everything automatically.
I do have an insulin pen for emergencies. There have been a few times I've nearly had DKA. I had it once and I was in hospital for a week. This was 5 years ago.