That's a pity you're not enjoying your server, have you tried talking to the people in the other association? This game is all about teamwork and working together to be the best team.
The Steam over Europe version of the game is the most complex version of Rail Nation, as you have the Landmarks to deal with as well as the cities.
It can be difficult to get people who haven't played before to come together and agree on a plan to grow the Landmark and City together, but that's part of the challenge.
If things really aren't working out in Barcelona on your server, then try to join up with a good team in a different city and get back to enjoying the game again.