You can go through the training page from the squad menu. Then choose "mentoring" tab . (There will be six available tabs as overview, physical attributes, mental attributes, GK attributes, Technical attributes and "mentoring") At that page, you can select "Abandon Mentoring". Hope this help.
Hi FMM team, I think I found one more issue but am still not quite sure. I started playing with Liverpool and am doing perfect with winning 100 % record. But til October, board confidence is still static in the mid-bar in every aspects despite superb result and position in the standing. Compare to FMM 2018, the bar started to change in positive/negative earlier. Or this version, you intend to let the board confidence changes slower than previous version. I play with iPad Pro and IOS 12. The version is latest 10.0.3.