Should I start smoking weed?

Or even drinking? My friends, family, school mates, coworkers and etc all make me feel like I'm missing out I'm 17 never been high or drunk had lots if chances but turned it down and now im starting to think maybe I should give it a try in moderation of course I'm well aware anything in high amounts is bad. Should i though like how bad are they really? If we can eat some of the shot we eat daily what makes weed and alcohol so evil compared to junk food?