Do keep in mind what Nicest_Incest said earlier, too. Because of the prevalence of adult games these days, it's difficult to make a living from it quickly. From what I've seen, it generally takes a few years to get to the point where you might have a steady income from it. But, if you avoid abandoning projects and stay hard at work, there's a decent chance you'll succeed over time. I would be cautious of wrapping this up too quickly, either. I see a growing number of comments saying that a rushed ending is practically the same as abandonment, which also could reflect poorly for the future. I'm not saying keep grinding this for years to come, of course; just put a close to this in a patient, controlled way.
If that can be done in a single release, do that. But if only one release doesn't wrap things up — either there are loose ends still; or you go in a single release from characters having had sex twice to "years later..." and they're a big, happy bunch with round bellies — you should do a few more. Because there's also the quality of the game that could hurt your reputation for later work. Daniels K, for instance, is a developer who always rushes endings, and it's been a stain on his otherwise above-average work (to be fair, he's never been amazing).
So much this! It depends, I suppose, on your expectations to qualify something as being a "success". But given the time typically needed to reach bigger numbers, patience really is the key. You already seem to have decent numbers compared to many, many devs I've seen working at this for a long time. It can be discouraging not to become hugely successful extremely quickly. However, if you stay consistent, communicate well with your supporters and potential audience, and keep improving your skills over time, I have no reason to believe you can't reach your goals for AVN development.