Since the acceptance rate of someone asking a question isn't immediately obvious, it doesn't matter. In other words, since those considering answering the question don't know your acceptance rate, there are no penalties for a low rate. Don't worry about the numeric rate.
What you should do, is accept the answer that helped you most, if one did. If they were all off the mark, so be it. Accepting basically says, "Thanks, that solved my problem". If none of the answers were all that helpful, then it's OK not to accept any. If at least one of them was, then you should pick one and accept it.
Each question is a separate case. Obsession over the numeric acceptance rate is pointless because it's based on a the false premise that all your questions not independent of each other, and should fall into a nice and neat pattern.
That is not to say it's OK to ignore accepting. You should when it's appropriate. Questions that don't have accepted answers are considered unanswered, and are automatically bumped to the top of the questions page occasionally. That's useful if the question really isn't answered, but a distraction and rude to everyone else if it is answered.
Another point is to not accept too early. Leave at least one day so that everyone around the world has a chance to chime in. No matter how good any one answer seems, you can't really know what brilliant revelation or unexpected insight someone else might add. I don't bother entering questions, let alone answer them, if they already have accepted answers. My limited time here is better spent elsewhere.