I was struggling to even maintain 2700 a few weeks ago. Sixty mate in twos (constructed studies) later, I was sure about getting to a new peak. In the same period, also got to a new blitz peak on chesscom but that could just be statistical noise.

Btw, the mate in twos was part of a training plan I posted on twitter a month or so ago (to address precision of short variations), so I had to finally get down to doing it. Completing the woodpecker method (all cycles) is coming up in early 2021 to get better at speed tactics.