Skill points come from training hard and many times during the season/day only some special category of players.
The must be young 18-21 and fast trainers. They must be new players on the game (search nordgen) but not all of them are the same good, also from your (or somebody else) academy or some of the above you can find them "second hand" in the market.
Auto-assign it's not wise choice. You must push skills according players position.
I'm really bad at reading guides
Is there a problem with the language or you aren't patient
Without searching this thing you can't figure out how it 'll work but if you 're interest, in a month/1 season you can be expert.

But it isn't the only road to success.
If you have money (real ones) you can buy ready good players (scouts) or
you can buy less expensive older players 4*-5* and with good management and with learning formations/tactics win some titles.
If you like and intend to play the game for months or 1-2 years it's worthy studying.