Transfers can be lottery, you can spent 20 tokens on 10 players or just one one. Even at level 2. I know from my own experience.u sh
First try to sell your substitution, do it in day 28 (is better because they cost more, in day 1 they will cost a bit less because they are 1 year older).
Then start to sell your expensive players to get moneys for other good players.
If you have 6 stars players you should keep them. At this moment if I remember good you have 23 players, try to remain with 14,15 at the end of new season, because you don't need so many.