These are all great ways to improve your game play, And I applaud you for asking for assistance.
We always have friendly people that are on the server that are willing to assist you in game if you want and I know some people that wall make a local server to assist if needed.
As @=VG= TEDF mentioned, Weapon ID is the easiest if they are friend or foe, and sometimes tracers. Calling out targets to teammates is often one of the best ways to make sure you have another set of eyes on the target. Is there a specific faction you are having trouble with identifying? If so go on a local server and load up that map and spend time in main identifying flags, cammo, assets as well as wepons. PRSPY, free app, Is a great tool to look at different maps and assets For the game.
And don't feel bad about not being able to use some assets. Some of them take years to master a properly, Some people are naturally great at it and some people just can't do it without a lot of practice and patience.
@=VG= Rotblut gave a map that has all of the air assets and plenty of them. This will reduce your "wait time" between crashes and give you more seat time.
Best of luck,
M8