I mean, there are different kinds of advice I would give to a kid who has a roof over his head and just wants to play videogames vs someone who is homeless and unemployed.
Obviously there are advantages if you already have a skill or any kind of knowledge in something.... like if I was dropped in a strange place with no money or phone in my pocket, I could probably find someone to donate a pen and some paper to me and I could probably do some sketches or portraits to at least put a couple bucks in my pocket for food until I could find a church or shelter to sleep.
When I had my "starving artist / starving musician" but was only a little way in school and suddenly (and stupidly by modern sensibilities and tax codes) responsible for a new family.... first I had a couple anxiety attacks... but then I went to a Temp Agency. Every couple days they'd send me to a different place.... I did some warehouse work, slid some metal parts into a tool/die machine, drained and power washed some RV refrigerators... but then I asked if I could test for some office work. I was an okay typist from school and teaching myself programming, but I sat in the lobby of the temp offices and read the manuals for Wordperfect... the old one with a blue screen and no user menu. You had to memorize all of the copy/paste/edit keyboard shortcuts (which happened to be the ones that Microsoft duplicated into later Word/Excel/Office and we still use them today). There was no toolbar or mouse... you either memorized all of the shortcuts or had the book next to you.
Each week or two I would be in some shaaaaady office that I think rotated temp labor in and out to keep people from figuring out the crooked shit they were cooking in the books.

But the best (not crooked but definitely ruthless) and last temp job I had was working for the German Bayer Corporation that was buying up Miles Laboratories... the inventors of Alka Selzer.
It was a lot of verifying that their English translations were good on all of the documents (there was rudimentary spell check when you launched it on a highlighted word but no grammar checking, I created a lot of sales training documents, and updated Org charts (which was awkward like the time I overheard someone talking about a boat they bought and I already knew they were going to be let go the following week.

) Besides getting a hawks eye view for how the top/middle/bottom of corporations actually ran, I later found that I soaked up most of that sales training and was able to use it when I was doing technical support for Pre-Nextel "Sprint Cellular" (which merged with Ameritech and became Verizon) and eventually IT Consulting.
Getting back to the OP.... I guess other advice I'd give young people is to always be prepared to get in there, get your hands dirty, make mistakes, get fired a couple times, listen when people have knowledge to share but be ready to challenge authority if what they're doing is unethical or illogical.
