You can leave. But you are taking a chance. They can ask you to come in any time up until a final decision is made. And if you are gone you will lose your fee and have to start over. Most places it is less than 2 weeks to get a decision.
so your YEAR extension ends after 89 days? And you have done the initial extension 8 times? Maybe you should read your comment to see if it makes sense before posting.
It isn’t long term, but has worked for some people to keep their account. So like everything it all depends on who you are talking to and what kind of day they are having.