Best tips for low level CVs.
Listen for, watch out and avoid higher level or better fighters.
Listen for, find and kill bombers. If planes are near water, manually lower you planes.
The closer to the same height they are, the mroe effective they are @ not wasting ammo while changing altitude.
Find and Kill scouts.
If you are having a hard time positioning planes to kill others. Scouting helps your team greatly as well as you can kill scouts that launch off the enemy line if you position your planes just outside of AA or sight range of the enemy ships.
If TBing learn how to manual TB, once you get used to it, they become near impossible to dodge.
Stay away from locals, they make playing T3s a hard experience when they should be a "I'm getting better" experience.