Revision: I still wake up before the alarm often, after 10 months, but when the alarm wakes me it is still not jarring.
I bought an analog alarm clock in the 1980’s that had a gentle alarm that started at a low volume and gradually increased the volume. It was simple to set and use and inexpensive - plain black plastic. When it stopped working I used various battery-powered alarm clocks and later my phone alarm. I wanted to remove my phone from the bedroom so I bought OneClock. It has reduced the anxiety I felt, which had me waking before the alarm sounded. The music is gentler than the other alarms I used. My sleep is not yet consistent but I don’t anticipate the alarm as much. I feel less stressed after the OneClock sounds and don’t jump out of bed with urgency to silence it.