Welcome to A&A.org, Sabregolf
The FAQ is meant for rules questions only, not strategy
You can peruse the G40 boards and start your own discussion thread there - I’m sure you’ll get replies and ideas.
There are many different strategies for Britain, and a LOT depends on when the Axis DOW. A common, effective strategy, is to focus on Italy early and keep them down. Obviously you want to get the 5 IPC NO, which requires you hold all original territories, but if the Axis really want to deny this to you, there may not be much you can do about it for quite awhile, if ever.
There’s a lot more to talk about, but like I said, I’m afraid this is the wrong thread for that - thanks! If you have any rules questions, though, this is the right place!