In a word?
No...
Haha, just kidding!
But really, everyone's perception of 'making it' is individual.. some will be happy as long as they can make the same as they would have made as a Walmart cashier.. others have much higher expectations.. nobody can determine whether you're 'making it', except yourself.
It's much more work to get an answer to this, than simply asking a question.. lots of research is in order. You've found a great source of info here, both in prior posts and informative writings about specific topics.. so read up!
Also be sure to talk to recruiters and ask about the particular vehicle you have in mind.. some might require newer vehicles.. and how much experience is required, and whether your driving/criminal/medical/insurance histories are in order..
Everyone would probably like to just 'drive', (becuz everyone enjoys just driving), rake in the money, pay the corresponding bills, and be happy, but it just doesn't work like that, there's alot more to it. Like budgeting, saving the revenue from the good month to offset all the not-so-good months.
Terryandrene had a great suggestion above, and from what I've heard, the best 'classes' take place in the parking lot
Just a thought, but people will probably tend to spend more time discussing things with you when it is apparent to them that you already have at least 'some' knowledge of what you're asking for further info about.