Only if you give me your username and password - but forget that!
You have to learn to do it because you will do it every 3 months.
That’s how long the certificates last and they have to be renewed again and again.
Take a screenshot so we can see exactly where you’re stuck
I assume on the CNAME section
and that you didn’t go to the control panel at all (although all the instructions are written to you while creating the certificate).
if this helps you (you are using a free subdomain, so read that part)