My trick is to find athletic activities that are things I would do for entertainment even if they didn’t confer any training benefit. Soccer, tennis, ultimate, and climbing are my current go-tos. It’s really easy to do 7 workouts a week when it’s all stuff you want to do for fun. Like discipline is great and all, but leverage your reward mechanisms as much as you possibly can. Also, it comes with the added benefit of making more friends.