A Lifetime of Riches - Is it as Simple as a Few Habits?

Take an existing cue you have, but trick yourself into triggering a different behavior.
If you want to quit coffee, you could give away the coffee machine and put a box of tea or a glass of water on the countertop.

Try to make a new reward that is similar to the old reward.
If it is a coffee habit, the reward is a warm beverage and an excuse to sit still and reflect. For that reason, a substitute like herbal tea would work.

Use Keystone Habits to trigger other changes. It could be just "waking up". 

You know you have to wake up each day. Set a note for yourself that you'll notice when you wake up and compel yourself to take a step in the right direction. (Do one pushup before breakfast, for example.)

Reinforce habits with belief and community.
When we tell stories of our own lives of making the desired change, it creates belief. When others chime in, it shows that achieving changes is possible for everyone.