Some tips? Don't do long haul. I mean, you have seven routes! I guess you don't have much money either. A tips: build up a good regional network, and then continue on to short-haul. Then some medium-haul, and then you should be able to experiment with some long-haul.
Your airline have a value of around 96.000.000. You probably have to wait for ages to be able to afford a long-haul aircraft.
Be sure to don't buy to large aircraft becuase that usually means bankruptcy. For London Southend, an airport with around 3k passengers, I think it would be hard to build up a money-making long-haul network.
Also, I think this should be in Game Strategy.