Discipline is only a small part of the answer and IMO the wrong place to start with, especially for people who have never had good fitness habits.
What's more important is finding activities that are naturally motivating and fun to do. These habits are far easier to build when they are more rewarding.
And then you naturally build discipline because the cost of missing out becomes more expensive to you.
What's more important is finding activities that are naturally motivating and fun to do. These habits are far easier to build when they are more rewarding.
And then you naturally build discipline because the cost of missing out becomes more expensive to you.