I was new to pumping, so I had training before I started. My training was from my CDE, an RN affiliated with a hospital. She was very knowledgable and gave me great advice and training. My training was covered by my insurance as diabetes self management.
I was trained on a Friday, and had a miserable weekend because my initial settings were wrong, I kept going hypo and wasn’t comfortable changing my settings myself. You already have settings and (I assume) experience with changing them from 8 years of pumping. As long as you are comfortable changing your settings if you can’t get hold of your endo, you’ll probably be OK starting without training. Tip: if you need to change a basal rate, you’ll have to suspend, change the rate and then resume.
Unlike many posters, I haven’t had trouble with pods sticking or ripping off. I wear mine above my waist band. I tried wearing a Dexcom CGM sensor below my waist band and ended up ripping the sensor off when I got undressed. You many not have this problem, but my middle name is Klutz!
The one thing that I did “wrong” (it didn’t work for me) when putting on my first few pods was to try to stretch the adhesive fabric smooth, like I do with a bandaid. I have better luck just placing the pod on my skin and pressing down the adhesive fabric. Sometimes I get a few small wrinkles, but they haven’t caused me any problems.
Good luck with your pod and post any problems you are having. Someone on here has probably had the same problem and will know how to fix it.