Hi Darman, welcome aboard.
1. Is the skills required to play this game hard to pick up? Not really, the main skill involved are patience, determination, and developing some basic orientation skills (being able to figure out where the targets are headed and how to plot a suitable intercept course.
2. Is there a way to practice and learn the basics? You bet. First check the
Tactics & Tips thread for the tutorial videos. And then
watch the WPL forum for a scheduled Newbie Tactical Training Session. Sign up there when you see one. We will school you through the basics and have a good time doing so.
3. Is the community open to new players? This is Subsim, where we have a long legacy of helping new players. It's why we're here.
Any other questions?