It was your comment that got the ball rolling:
Mistake#1
Thinking that training is possilbe at your level in the game. This is not really your fault. One would hope this game is set to reward you for training your own players...that really only happens in small nations where they have the finances or established teams taht bought pre created players at around 22. Its just the way they set this game up.
Mistake#2
Training JS. LOL. Most overrated skill around. WHy the heck to so many people come into this game and think pumping JS on all their players is gonna make them win? Its insanity.
As stated before, the first part is incorrect and the second half makes you sound like the euphemism for a donkey.
How about all the division III hopefulls (see not even Div.III yet) take a step back and a division II guy give osme advice?
Each of the D3 and D4 hopefuls you're referencing bent the ear of high division players and learned the ins and outs of the game before ever giving advice. And I'm not talking about high division users from countries with a user base smaller than 100. I mean high division users who have been successful in large countries.
Lack of experience is relative, anyway. Compared to other users on this forum, you lack a good deal of longevity as well. Add to this the size of your country and the division you started in, and the same argument can be made of you.....