Drugs can make you feel good for a while. Just experimenting with a drug may make you want to try again and again.
You may find that taking a particular drug makes you feel confident and may help you to face a difficult situation. After a while, you need the drug to face that situation every time.
If you are unhappy, stressed, or lonely, you are more likely to turn to drugs to forget your problems. If you find that you’re using a drug or alcohol more and more often, be careful - this is the first step to becoming dependent on it.
If you mix with other people who use a lot of drugs you may well do too.