New Player To Game.

[Toxcatl]

1. I couldn't translate it, sorry. Too many or-s =] Yes, you should train your players. Yes, it will be partially for nothing, because on promotion they will lose 20% of relative quality. Yes, you will probably get a promotion (what did you ask? xD). Yes, they will be ok next season in the next League, 20% drop is not that much.

2. Young players get XP waaaay faster than the old ones. Old means older than 21. Every year in age reduces the pace of training by ~15%, as well as every star. I'm not sure in this number, though. It would be nice if someone can confirm it.
Probably the most optimal strategy is to buy 2-4 18 y/o fast-trainers (if you've read Al's guide, you know what it is) every season to replace your oldest and weakest players. Keep only your best players older 21, mercilessly sell the rest of them. Farm 30 greens every day by watching videos or buy tokens (yes, you don't need to buy tokens if you watch videos). Concentrate on training 11-13 players, your main squad.
Also, 5 star is nothing. 7-8* is your target, but it's impossible thing to achieve in one season, unless you're a token buyer... Oh, wait :3
The best bonus training method can be found here.

3. Do not ignore those messages, your teams performance depends on it (big time!). Train one reserve player with one drill a few times to solve this.

4. While you are on levels 1-4, you don't understand the game completely. You don't feel its seasonal rhythm in your guts =] And you will inevitably waste your tokens. You can do what you want of course, those tokens definitely won't harm. I can't count your money for you.
It is a balance between micro-control and efficiency. If you are ready to spend on training 10-15 minutes a day instead of 2-3 minutes, then it is highly recommended to train your players individually. There are just a few good drills for every position. I mean, it's inefficient to train DC with Shooting Technique, for example, or AML with Defending Crosses. When you train your players all together, you are training them skills they don't use.
Training planner: https://forum.topeleven.com/tutorial...g-planner.html. Look into "How to" even if you don't need it, Theorycraft may be useful.