I have found, in my life, working with and along side teens, all you can really do is listen to them. If they seem like the receptive type of person, talk about your own experiences, but make sure you STRESS that they are YOUR experiences, and could very wildly from theirs.
I think what most teens want, isn’t guidance, as much as just a place to vent and be regarded as an adult, or, at the very least, mature.
Teen will think, no matter what, that they have the entire world figured out. That they know exactly how everything works, and how everything will be, NO MATTER HOW MUCH YOU SAY THEY DON’T. I remember being a teen myself (which most adults seem to forget), and I thought the same things, “It will never change,” “Things will never get better,” “Life is worthless and meaningless,” “No one loves me…” All these and more used to be the solid, unyielding truth of life… Then I grew up. I started to see the world change.
I guess what I am saying is, you have to let them screw up. You have to let them make terrible decisions. Then, this is the most important part, BE THERE FOR THEM when the poop hits the fan. Don’t judge them and tell them “I told you so!” Just be there to listen and help when they ask for it. That is one thing I have learned time-and-time again, don’t offer help to teenagers, especially “problematic ones” (read: nearly every teen in the USA), because they ether don’t want it, or won’t listen.
When you are a teen, you have a grand idea of how you want the world to work, based on previous (juvenile) experiences, and observations of the adult world as they have been presented it (through their families, and mass media [in most cases that involves more of the internet, and less of TV]). So, they believe, based on those observations, certain things should be available, if not given, outright to them.
Teens are not logical entities. They really can’t be. They are based almost wholly off of emotions, mainly due to the fact that puberty is ravaging their minds with an indication of chemicals their bodies aren’t used to, and will take a very long time to get used to. So, if you have to talk to\work with teens of any age, think along the lines of emotion, not logic.
That has been my experience.