Set yourself mini goals to keep you interested, for example only sign players under 21 or develop Werder Bremen's best youngster. They will keep you interested so you can achieve the ultimate goal of European domination.
Set yourself a long term goal and set out to achieve it by meeting lots of mini goals season to season. I'm 2 seasons into a really good save with Sporting Lisbon and my long term goal is to Win the champions league with them with a team of players from the academy. First season I wanted European football, this season I want to start phasing out the older players whilst qualifying for Europe, next season introduce more younger players and aim for the champions league and so on.