Timeline question

Hey guys, my school doesn’t have a premed advisor right now so I’m looking for advice.
The only prerequisites I have left are OChem1,OChem2,and BioChem. These classes are offered sequentially.

I am set to graduate next spring with business degree. My current schedule is to take O1 in the fall we,O2 in spring, and biochem in the summer or fall of 2020. Which means I’ll be applying in 2020.

Or I can take O1 this summer,O2 in the fall, and biochem next spring with a goal to apply in 19. However, I’d have to take Biochem,study for MCAT, do final capstone project, in addition to other class loads. Recommendations?