Don't trust anyone that the illegal drug that they are offering is the chemical or plant they claim.  You are playing chemical roulette. If you do not know someone who was sickened or injured by a drug that was not what they thought they were buying, you will. Drugs get adulterated with cheaper, stronger substances all the time.  PCP in marijuana,  strychnine in LSD, you name it. The legal drugs- alcohol and nicotine- do more damage to society and your body than the illegal drugs.  They are terrible choices.  There is an option to buying drugs.  The idea of drugs is to get the effect of the drug, with as little drug as possible.  The idea is NOT to consume huge amounts of drugs and prove you are mature enough NOT to show the effects. That's called profit for the companies who make and sell the drugs.  Your object is to have as much fun as you can, with as small an amount of drugs as possible.  Be an easy high, an easy drunk.  Learn to have a lot of fun by being sensitive to a small amount of stuff. Combining small amounts of two drugs is a clever way to get a larger effect-  caffeine and nicotine is a common combo in our society. Be careful of drugs that don't mix though- alcohol and sleeping pills is one example.  Some people get addicted to drugs easily, some don't.  Know yourself.  In either case,  be moderate.