Advice for classes next semester?

So I’m a biochemistry major at a STEM college. I’m planning on taking next semester physics 1, organic chemistry 1 w/ lab, calculus 3, and diffeq. That’s 15.5 credits. Does that seem overwhelming? Will I not be able to keep my grades up? How is it taking diffeq and calculus 3 in the same semester? How is it taking physics 1 and calculus 3? Usually physics 1 is taken with calculus 2, but I delayed taking it. Will taking these two math classes make physics 2 easier? Thank you!