I missed insulin shots twice in my early adjustment to the disease. Now, when I write down my blood sugar measurements, I always make sure I write "Lantus" or "NovoLog" beside the number. Making sure that I do that always reminds me. I have not missed a shot since.

Use your phone and set alarm on it to go off when need to take meds.

I use my phone Alarm (note to myself Insuliun) I put it on snooze so I have to pick it up to turn it off

I use an app on my phone, plus pill packs. The phone app isn't specific to diabetes, but I'm able to schedule testing on it as well as all medications, scheduled and as needed. I would struggle to remember otherwise! I pack meds about two weeks in advance; that helps too.

Mine is where I’ll see it. Since I have to test before each meal, it’s right next to my testing kit. Since my insulin is a sliding scale, by the time I take it - already know amount of carbs I’m going to eat!!!
There are so many ways to help remember. It’s what works for you - be it an app, place where you’ll see it, your phone etc