If you must, do it in moderation and purely as entertainment with what you can afford to lose. Don't overuse credit cards. Manage your time effectively. Also most people have a shortage of it. In fact, time is even more precious than money.
Time is the most perishable commodity of all.
If you don't use it today you cannot use it tomorrow. So take pleasure in it. Read, listen and think. The person who listens to others learns something, while the talker learns nothing. Project a good image at all times.