Hey @nikolgiorgos First of all, thank you from bottom of my heart for your effort! Those data, are priceless and really reveal some valuable hints at this game.

While you started it, I will also take off my pokerface and show the history of my precious team:
Click image for larger version.  Name: TE full history.jpg  Views: 123  Size: 92.0 KB  ID: 76612
Like you, I also had my nonactive seasons... (started from Season 25 or so) Main reason was the new update of TE, where you had to train 4 sessions a day before a match. That was a deal-breaker for me, because all I did was: log in, send those 4 gifts back, check the formation from the upcoming opponent, set counter-formation plus motivation boost if there are yellow players and repeat.
With the update I now had to do more actions (klick) for the same purpose. I tried it a while, but it seemed like to much extra work and I skipped those training sessions and ended up losing, so I stopped playing it for a while. Now since 2 Seasons I am back and accept the fact, that I have to do 4-6 more extra actions.

After seeing what Maradona did for your team over those seasons, I think my team earns a proper legendary Player too. I will buy a ST player form the recommended list (or scout) with atleast 2 positions. ST AML or ST AMR + FK-SA and also watch out for age (and no weakfoot...)

My question is: Do you recommend powertraining or buy a special trainer for tokens and let the trainer do the skill points. And als do you recommend training in the old version of TE where you can manually apply skill points?

Best regards pal, you're doing a great job!!