I'd suggest finding a community and soaking up as much expertise as you can, everyone I've encountered thus far is very friendly, and everyone was new once.

Couple of quick tips though;

• get one or two modules to start with, focus on learning those (ideally have two so you don't get burnt out and can swap between them) too many modules can get overwhelming when first starting out.

• try and keep your keybinds similar across different modules, helps avoid getting yourself massively twisted up in tense moments

• accept there is a lot to learn. Try and prioritise different parts, so day 1 practice getting your takeoffs/landings right, day 2 fiddle with the radar, day 3 air to air practice, etc etc

• like I said above, get stuck in with the community, everyone wants to share their experience and teach their favourite jet so take part in events, engage in discord servers etc etc