I would also get the free overpatches from Dexcom.

I've bought these Simpatch they're okay for me but a portion of the simpatch peels off by the 9th, 10th day. But like the simpatches more than the overpatches. I keep the overpatches cause it's free and for just in case.

I rarely use the receiver. I just use the dexcom app on my phone.

I would try to pick a time of the day where it's easy to install and wait 2 hours for the sensor/transmitter to activate.

For me, I like to install a new sensor after work where I'm not in a rush and can wait 2 hours before readings to show.

When you're peeling the sticker off the Sensor save the 4 digit number. I've thrown those away before only to have to look for it again to activate the sensor on my app.

When you first start using it. Don't worry about the ups and downs of your blood sugar. It'll take some time to adjust and see how your blood sugar reacts in real time to the food you're eating.

I use the brand Simpatch that I found on Amazon. The adhesive stays pretty well and it hasn't caused any skin irritation. SIMPATCH Adhesive Patch for Dexcom G6 - Pack of 25 - Multiple Colors Available (Black) https://www.amazon.com/dp/B07CZ3ZJ18/ref=cm_sw_r_cp_apa_i_8bI5Db8983J41

I've been using Simpatch as of late and haven't had issues. It's fairly big though, so it that bothers you, maybe trim it down?