Humans need surprisingly little to survive. We convince ourselves that we need more, more, more—but we don’t. Instead of wanting more, try wanting what you already have. If you want what you have, you can call yourself wealthy this very moment.

We have a tendency to go for the bigger, better option in everything. This leads to overspending, overeating, and overdoing it. Whenever you’re making a choice, try asking “Is this essential?” or “What would less look like?” You’ll often find that you can get by with far less than you first imagined and you’ll thank yourself later when...