AirwaySim is a game of learning. I played many gameworlds before and was ver succesful in every one - and in this gameworld I made something stupid. It happens to everybody and even later, when you are a well known good player, you will make mistakes. Never give up and try to save your airline, but sometimes one has crossed the line so the best move is to restart.
In the first 1-2 month of every gameworld all airports are crowded. I see two timeframes where it is good to start: At the very beginning, gaining advantage over your competitors so they can't BK you and later, after 1-2 real time month into the gameworld, when the chaos is over. People have left, some ofters have shown they are weak and some are strong.
Often there are 3-4 good airports with no airline and 10-15 more with a weak one.
Anyways what you do now is gaining experience and that's something that's crucial and, that's the most coolest thing, nobody can ever take it away from you!
If you ever face a situation you need a second opinion on, please feel free to ask here or send me a PM. Several people, including me, don't know "stupid questions" sent via PM (I noticed many people fear to ask due to that), we only know to answer as helpful as possible.
I don't know from which part of Switzerland you are, but if you prefer writing PM in German to me, that's possible too.