I went to your airline and took a look... I'm a beginner too...
- I saw you have a few lines with to much offer, so you must be loosing money on those.
- Do you have a lot of marketing? Marketing's good to start the airline or a big airplane, but you must keep it low so you don't spend too much money
- be careful with rocket prices... get them 5% to 10% or 15% lower when you start your inline, but you must raise them once you are in "green"... about 80% to 90% or more sold tickets... if you are about 50% or 60% try keep them as they are suggested, but in all cases you must take a look at your prices at least once a week!
- other thing, try to always have the same kind of planes and/or same kind of engines... it costs less when they're the same constructor.
Hope I could help you... I try to keep my airline alive as well... Not bad for the moment!!! Better than some of my friends that start paying it! But we learn making errors or reading about other player's errors!!!