In T11 it is most important that you get weak opponnents. Sell now all your player. Only keep your 11 strongest players and your 3 weakest players (perfect: 1% players). That will give you weaker opponents next season, which is the way to success in T11 without investing money. Personally I can‘t remember the last time I lost a game in league, cup and CL

Also very important: add a lot of success bonus for your players. It‘s like in the real football world, without money the player aren‘t motivated.