The reality is this is a deeply personal choice for you that nobody on here can answer. All we can do is give perspective to help you make the choice that fits you best.
What does skiing mean to you, and do you need to push yourself to get the most out of it? Or is just cruising with friends through pow your ideal situation? What do you want from skiing in 10 years? 40 years? Is it worth it, to you, to risk giving up skiing into old age for a shot at being the skier you've always dreamed of being? These may be the extremes, but where in the middle do you fall? I know my answer, but I can't tell you yours.
I've never had a truly bad injury like others in this thread, but two broken collarbones, a broken nose, a concussion, and a stretched MCL have all made me re-evaluate how much I push it. I have a friend who broke his neck DH biking at Killington, and placed top-10 in DH nationals at Windrock last year. I have another guy I know who broke his back, skiing with me and my friends (at Pats Peak of all places), and hasn't skied since. They probably both made the right choice; they're different people.
IF you decide to get back into it, I would go back with goals. They can be small, like just trying to feel smooth and comfortable skiing again. Definitely build strength/flexibility and eat right to avoid injury. Don't ski drunk. I also think taking it on from a different angle can help, as you won't be associating it with your injury as much. Maybe you could try to get smooth and fast on natural terrain, then think about moving back whenever you're comfortable. Castlerock at SB is a great spot for this. Or focus more on rails this season. Either way, waiting until your general skiing feels right to go back to flips is probably the right move.
