Welcome to the game Warlord!
I've been playing since August or thereabouts, and you'll find a wealth of information in the forums. There are many experienced players here who are happy to answer questions and give guidance.
Definitely learn and understand how to capture or flip sectors - as Dru83 mentioned, you can have a high personal score and still lose the game because the other team got more points from capturing and holding sectors. There's a recent thread here - http://forum.worldof...apturing-zones/ - that talks about this.
As others have said or will say, don't climb tiers too quickly. Get to learn the fundamentals of the game in the lower tiers. I've have about 1300 battles and I'm still primarily in Tier 5 and learn new stuff just about every day.
Don't forget to train your pilots - the skills they can learn will help in higher tiers. Also, if you transfer a pilot to another aircraft, don't forget they need to be retrained (either 50% for no cost, 90% for 100,000 silver or 400 gold for 100%). They'll suffer a skills penalty (25% at 90% proficient) until they reach 100% proficiency, and experience earned will go towards their proficiency and not new skills until they're 100%.
Definitely try out the different lines of aircraft, both nations and type. I didn't start playing with Ground Attack and Bombers until recently, and now I'm playing catch up and taking a beating doing so. Which is not to say I don't take beatings regularly otherwise....I do.
The community here is great, and I would recommend considering joining a clan, as you can get a lot of advice and tips and tricks from your clan mates, and it can sometimes be easier to find someone to flight with from within your clan.
I would also recommend taking the time to specialize your planes once all the upgrades are done. Specialization gives you the opportunity to add equipment that improves various aspects of the aircraft, and this equipment can be enhanced and calibrated via silver and materials - and you get some materials from every battle you win.
I look forward to seeing you in the skies - best of luck 