Too difficult course load?

Sextus Noventus • Math and Physics are cool. Minimalist. Advocate for Earth. Proudly childfree. Elder Scrolls Online aficionado.
I'm transferring to one of the largest Universities in the US in the fall and my GPA essentially "resets". I've been getting a 4.0 the last few semesters but I did have a 2.5 GPA semester a year ago which really is haunting me. I'm grateful that my GPA is restarting so I want to ensure a 4.0 in the fall. Do you think taking 9 credits: (Physics 3, Differential Equations and Logic and Proof in Math) would be pushing it?
I'm so nervous 😩 What would you all do?