Sounds like the real question is, "there are some minor issues in my submission, how do I fix them?" There's nothing wrong per se with withdrawing so you can submit a corrected version.
In theory reviewers are not supposed to reject you for errors that can be corrected, such as inaccuracies in the abstract that can easily be rewritten. So if it's something that can be easily fixed, it won't matter that much in the end and you will probably still get an opportunity to fix it after reviews. Granted, reviewers are humans and one error may bias them to judging you more harshly, so it depends somewhat on how nice your reviewers will be. But you can never escape from the human factor anyway.
I think most journals will not mind the retraction too much, especially so soon after submission and if you phrase it diplomatically (don't make it sound like you didn't bother proofreading before firing it off). Some may even have a submission system that makes it a non-issue for the staff. But it is also possible that the retraction creates a bunch of hassle and stress for the editor, who may have already done work to process your submission and assign reviewers. The submission is not supposed to be a living document, but your final draft. Of course being a draft, it's not perfect -- the reviewers are there to help you with that. But if you keep withdrawing and resubmitting over minor errors, it is annoying to the editor. And if you have already withdrawn and resubmitted once, who's to say when you will be satisfied and stop "fixing" it?
It's really not possible to say from your question whether the error is minor or not. If it is minor, don't bother. You will get a reviewer comments telling you that part is wrong, and you can submit a response saying you rewrote it. If you believe the error truly sinks your whole paper, then you probably do want to withdraw, as reviewers would recommend outright rejection. But it seems like you believe that it can be easily fixed, and the reviewers will probably have the same opinion.