I’m assuming that you have just become a teenager and been offered drugs for the first time. Previously you were just a child and thought you understood the world. However now you are no longer sure.
First some background: inside your head you have a brain. The complete function is not fully understood but it is known that the parts: the sensory system, the central brain and the control system can be tampered with using substances which influences their function. These substances will influence your perception of the outside world, your thought process and the signals which determines your behavior.
Alcohol will make you entertaining and the center of attention at social gatherings. Cocaine will make you feel like the boss. Marijuana will turn you into the minister of good ideas. However the experience is delusional and only inside your head. Other people around you will probably not agree with your perception of the situation.
So, to rephrase your question: If I want to experience the most of life while I’m here. Which path should I take?
The blue pill represents waking up in your bed every morning with a clear head, and endless possibilities, but it will be up to you to explore the world and find those ideas that makes sense to you. Some of them are easily accessible others will require detailed planning and tremendous effort before they bear fruit. The red pill is the backdoor-key to the same wonderland, however it will only exist in your own head and everything will be gone when you wake up, leaving you with a sensation of confusion and disconnectness with the outside world.
It is your choice.