I run 1mi/day. On average, meaning that I don’t run every day. I’ve done it for the past 5y. The first 2 were the hardest. This year I run over 500mi (and in Mar & Apr I practically didn’t run). This is just to say that the key is consistency, if you can make it a habit then it’ll stay a habit. Run works for me, but bike or push ups might be an alternative if you hate running. If you start from 0, account for your gr…
Wish you success with your pull ups this year!