First, a related question is How is it in my best interest not to submit a paper to two journals simultaneously?
Second, if any double publication occurs, you are screwed. I would agree that since the other journals do not have a signed copyright agreement from you, they should not be allowed to publish the paper, even though they accepted it for publication. However, this has happened in the past, and it led to the duplicate submission being retracted:
The two corresponding authors of the two published articles claimed that the problem arose from a mistake: the Scholarly Journal of Biological Science had asked for a publication fee that the authors could not pay. Believing that the journal would therefore return their manuscript, they submitted the manuscript to our journal. [...] We therefore decided to retract the article from our journal on the grounds of duplicate publication, informed the Editor of Scholarly Journal of Biological Science of the situation, told the authors about our decision to retract the article, and—considering their actions—reported the misconduct to their institutions.
(Journal runs retraction, editorial over duplicate submission of pathology paper, https://retractionwatch.com/2015/02/17/journal-runs-retraction-editorial-duplicate-submission/)
In some cases, both papers are retracted, which I feel should be the standard for double submissions.
So keep your fingers crossed that all the other journals honor your withdrawal "for personal reasons".
Third, assuming no double publication will ever take place, the issue of double submission: they still can take action against you, and maybe your paper. It certainly depends (well, not so much - see below) on what you the journals asked you during submission and what you told them.
Many journals nowadays expect an implicit or explicit confirmation by the author(s) that their work not been submitted (well, meaning it is not under consideration) elsewhere at the same time. Some expect you to include that confirmation in the cover letter and/or the manuscript, and if you did not add it there, you may be fine. But some may also have a mandatory checkbox in the submission system; some may have it in their author instructions or ethical guidelines, which you implicitly accept by submitting your manuscript. Either way, chances are very high that at least one of your five journals has such a requirement, which you failed to adhere to.
Thus, assuming you have made any such false statement, you may be in danger of being banned from these journals - this has happened in the past:
One week after it was published, the editors of journal B contacted our journal stating that this work, with the exact same title, authors and content, had been submitted to journal B and, after receiving an acceptance letter, the author withdrew the paper, informing them that it had been accepted by a different journal.
When the editor of journal B asked the author for an explanation, the author did not provide a satisfactory response. Journal B, in consultation with their editorial board, banned the author from submitting to the journal in the future.
(COPE case 17-20, ongoing; from https://publicationethics.org/case/consequence-dual-submission)
[While you see some going back and forth about submission dates in the above link: these are very often printed in the published paper, so any editor of your four other journals will be able to determine that you submitted concurrently.]
Also, an expression of concern might be published next to your published paper:
The Forum agreed this is still a case of duplicate submission and that there has been possible misconduct on the part of the authors. Although there is only one copy of the paper in the literature, the Forum advised the editor to consider publishing an expression of concern to alert readers to this.
(COPE case 12-30, ongoing; from https://publicationethics.org/case/retraction-first-article-case-duplicate-publication)
(very similar: COPE case 15-40; https://publicationethics.org/case/duplicate-publication-and-removal-article)
I have yet to find a case of a singly-published paper being retracted for dual submission, although I would not be surprised if that happened, given that both papers of a dual publication can be retracted (see above). However, one of the links above (I would have to find that passage again) says that retractions should be made to correct the literature, not to punish" - and if there is no literature correction to be made on the grounds of double publications, my guess is that your paper is safe.