>> I sent an email today that I wish I could take back, when the receiver sees it tomorrow at their workplace I am going to feel so bad.
You can take it back. You can write another email saying you now realise you did not mean what you wrote in your first email and you take it back and apologise for it and would ask the recipient to consider it was never written. To any reasonable person that should suffice and close the matter. If the person is unreasonable or worse, then you are in the higher position and they are the one who will need to apologise later.
Other than that, I wish you well. We have all had bad days. This reminds me my father used to have a paperweight with a cartoon and the caption:
I’m still trying to figure that one out.