If you're having issues with the pen and strips you could ask for an implant sensor and you can just scan your arm with your phone.
I've got a friend who was doing a trial with this. I think he only had to do a manual fingerprick test once a day to check the device was reading correctly. But then meant he didn't need to keep testing throughout the day, just inject his insulin based on the reading from the sensor.
I think it's also a great way that allows you to see your levels across an entire day.