You become like those you hang-out with...
Think about it.
If your friends are into school...you will likely be into school.
If your friends are responsible...you will likely be responsible.
If your friends are wealthy...you will likely be wealthy.
Similarly the list is endless that has negative associations.
If your friends do drugs...you will likely do drugs.
If your friends are smoking...you likely will be a smoker.
If your friends are dishonest...you will likely be dishonest.
So why is this so powerful a determinant?
If has been said, "Birds of a feather---flock together."
Teachers will tell you that if a new "bad" student arrives at school...by the end of the day he will have found his or her "bad friends". It is like they are comfortable with each other. They understand each other. How does this so easily happen.
A favourite Proverbs says: Iron sharpens iron, so one man sharpens the wits of another. It is likened to peer pressure that can either be positive or negative. Positive peer pressure could be sharpening in that it encourages you to "lift more than your comfort zone" in the Gym. Whereas negative peer pressure would be to cheat on an exam as all your friends are.
From this we can take from it that our relationships can sharpen us for good...or for bad. So who is sharpening you? Is that friend sharpening you for "good"?
The big learning here is that it seems like we are in the drivers seat on this one. We get to choose who we get to hang-out with. We know the people who are good for us and we know the ones we should stay away from. We are chooser's ---- we get to choose and therefore we must choose wisely...as its resultant effect on us will be great...either for good or for bad.