None of what you had was really worth much pre-rise so you're fine.
But the rest of what you said is true. I'd recommend running away before you commit. F2P is nearly impossible for a new player now so what's left are veterans who invested too much, whales, and weeb weirdoes who ERP in Ch1-5 or beg for girlfriends in mega.
This game doesn't have much to offer other than AFKing an hour a day for a free outfit every summer/winter. The raids are easier and you can only run with 4 people at a time. You could hypothetically play this entire game solo now if you whale on gear - the only thing you might need a party for are Redeemers. However, even that becomes solo-able after gear upgrades.
Honestly, if I didn't have as many friends who still like to play I'd have left long ago as the combat is great, but the lack of actual content is depressing. Even the newer chars now are getting easier and easier to play so they're starting to do away with the one redeemable quality they have.... If you like pre-rise content there are private servers floating around.