There is nothing wrong with not wasting money. That said, you should avoid being a miser.

I faced that problem years ago. A few things I did was:

1) find a charity that you believe in. I recommend looking at web sites that rate charities.

2) Develop some hobbies. Explore life. I took up bicycling and ball room dance.

3) keep avoiding $300 jeans, people who do that have more money than brains.

4) make sure your spare money is wisely invested. In the US I recommend people go with Vanguard