Error in applications

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So I submitted applications for 4 universities A,B,C,D. I made error in applications to University A and B.

A: I submitted my CV but in "other projects" section, where I talked about projects not relevant to my field, I mentioned a project duration as "Jun 2017- Mar 2017" when it should be "Jan 2017- Mar 2017".

I mailed them but my application was already under review so they denied for updates. I am really scared as this is my dream school.

B: I had to submit a pdf of course content and I mentioned 4 out of 26 courses having 6 credits when they had only 4. I mailed the grad admissions about it and they did not reply yet. I got a mail saying my application has been forwarded to the department now and I am just so scared. I have also mailed the link to my uni page where my course curriculum with credits is given.

 I am so stressed. Has anyone been in this situation before? I am randomly reminded of errors I am making in my applications and I am so scared.