Hello,
I'm sending you a message to find out if it's normal that I don't have many skill points despite playing every other day.
A member of my agreement told me that it wasn't normal because he lost a point in stamina and that I needed to send a message.
I'll post the player's message next. Sincerely
G. Dobbie

Hello Spnky,

Your player has a potential of 52, which means (roughly speaking) that he should achieve an NG (Overall Score) of 52.

His current coefficient of progression (i.e. this season) is around 10, which means that he should improve his NG by 10 points between now and the end of the season.
If you train him every day and he plays every other day on average and (let's say) completely, you should get there.

All in all, it's a normal progression for a player with this potential and this coefficient of progression.

On the other hand, I can't see him losing any stamina points...

It's not endurance... it's NG... basically, since he changed jobs to learn it, he's lost 1 NG in the new season!