How would you answer "What do you think I should know" from a time traveler from 1994?
1) Don't go to war in Iraq/Afghanistan, it won't be worth it in the long run, and you'll be ruining your life for nothing.
2) Amazon, Tesla, and Bitcoin.
3) Try to get a career in software. It will be a high paying job for decades to come.
4) Most cancers still aren't treatable, so stop smoking.
The rest is solid advice although it wouldn't really pay off until 2010+. 4 is solid advice but also pretty well known at the time. I don't know if smokers were banking on a cure for cancer when deciding to continue smoking.
What would we say to someone to give them that would help them live their best life?
I'm talking about them personally not enlisting in the army and fighting in those wars.
Pah forget all that.
If they're really from 1994, just tell them to beg/borrow/steal as much money as they can and shove it all in to Apple stock !