I had this same exact issue. I am in Season 11 and I have qualified for the CL every season since the second one and every time I have made it out of the group stage. This year I was put in a group with everyone from level 12 and I finished with 1 draw and 5 losses. I checked the other groups and realised that out of the 32 teams probably about 5 other teams were on my level and the rest were level 12. Apparently it's just top 11 s way of balancing out your success. I was even struggling in my league as well, and I am always finishing 1st or second in the league. It was so bad that I went all the way down to the relegation zone early on, but I just modified my tactics and formation and right now I am in second place. I cant finish 1st again because they have a 9 pt lead with 5 games left to go and all easy matches, but based on where I was coming from I will happily take second place.

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