Not one of us can tell you if you can stay sober with or without meetings.
Some people will tell you "Of course you'll relapse if you don't go to meetings." Others will tell you "I've never been to meetings and I've been sober for 9 years so of course you don't need meetings." My guess is that if you don't want to go to meetings, you'll latch on to those who say you don't need them.....and possibly be annoyed with those who say you do. In my opinion, while those statements may be right for those individuals, it may not be right for you.
Those statements are just proof that we're all different. You have to find what's right for YOU.
We can only share our experience, and as you'll see nearly all of us have a different journey throughout our recovery and sobriety; how we did it, how we maintain it. We're all different.
What does your gut tell you? Can YOU stay sober without meetings? What has worked for YOU the last 2 and a half years?
Whatever you decide - I wish you the best. We're all here for you!