Do you enjoy reading? Plan to buy a book every month or every other month. Plan for what works for you.
Start a vacation fund to take the vacation of your dreams. When you plan, there's less stress and more enjoyment.
Do you enjoy working out? There's nothing wrong with spending money at the gym every month.
You can indulge in eating out. Just put it in the budget. You can even think of it as investing in yourself.
While some say entertainment is a luxury, I say it's a necessity. You have to enjoy yourself. Just plan for it with a budget.