Although not mentioned explicitly in Sony's teaser, it is almost certain that the WF-1000XM5 will launch next week. These earbuds should arrive with 8.4 mm drivers, three microphones, and improved real-time noise cancellation. Bluetooth 5.3, wireless charging, and multipoint connectivity are also expected.
It takes time to get used to new ear buds. Wear them for 4+ hours a day for a couple days in a row, then give your ears a break for 2-3 days so they can heal. Then try the buds again. They probably won’t be as uncomfortable going forward.