Yeah, I'll probably have to do a bit more digging around if I'm sure not sure what to do. I'll give it another shot and hope that it grabs me this time.
I'd suggest doing the tutorial quest and learning basic movement and weapon mechanics. Once you've fully outfitted your ship with all the stuff from your tutorial quest, there should be a desk to the left of your navigation called the "Codex." It should give you some useful information regarding more game mechanics like mods and how to use them, it should give some solid foundation to understanding the game.
If you're totally new, I'd just suggest clearing out missions at each planet once and expanding your available missions map. Possibly set your matchmaking to public if you want random players joining you mid mission, but note that sometimes high level players will join and steamroll everything for you and speed run the mission, though there are high level players that are willing to tag along with you and help you complete difficult missions. Don't be afraid to ask questions.
Basic game flow for me is:
1. Do I need new mods? Do I need to gather resources to build equipment? Do I just want to blow off steam and have some quick fun?
2. Look up any needed information like what mobs drop what enemies and where to find said enemies using the
wiki
3. Go to locations and repeat missions till I get what I'm looking for