Lv 13 .. Need Ur Advice so badly

[t11_fan]

I aggre with pcmacdaniel and i wanted to add:
Some resources-wise strategy is to buy few nordgens for specific positions and for the rest of team older+cheap 5* players. You should buy players that are max. 30 years old, because you will have time to use them and to sell them before they retire.
Use nordgens for positions like GK, DC or ST. Then train specific skills for them: for GK only def skill, for DC def skill and physical and for ST attack and physical. This way they will be more useful in few seasons. For positions like this mentioned you don't need equal skills, so your trained players will be useful even when they have 4* or 3* for GK
I usually buy new, cheap mildfielders every season or every 2 seasons, sometimes even 3. That depends of their growth and form. Mildfielders need all similar skills, so good defensive, attacking and physical, but different from position to position (eg. wings need stronger physical, AM's need strong attack etc.)
Form is quite important and underestimated part of game. If your player is in bad form, change his position, if form doesn't improve, sell him no matter how high quallity he has. Bad form players are completly useless.
Arrows are useful if you know how to use them. I don't know why some managers use red on ST and blue on DC, for me it doesn't make sense. Strikers are attackers, so they will be in attack with or without arrow. However, if you play 3ST formation, blue arrows on 2ST's (left and right one) are useful when your team is defending, even more if your opponent has 5 mildfielders formation.
Red arrows are useful for mildfielders and sometimes defensive-minded players to support attack. For example if you are playing against formation without wingers in mildfield, you should focus play through flanks and put red arrows on your ML,MR and fullbacks.
Use very attacking mentality only when you desperately need goals in last minutes!
You don't need a lot of tokens to have good team. You just need to know how to buy and when to buy players. Don't join auctions where are too much bidders.
There are threads and posts about every aspect of this game on forum, search them on google and read them, was useful for me.
Good Luck