Affiliate Marketing Secrets

Here’s the situation:
I’m a rising senior, science major in college; I’m trying to decide whether or not to take a physics class this summer to make my first semester next year more manageable and finish premed stuff. However, I also need to finish up classes for my major (neuroscience), which is definitely the #1 priority. The kicker in all this is that I’m not certain about med school yet, so I guess the question is: should I even worry about finishing physics before I graduate?
I hear if you work as a lab tech at a place affiliated with a university, you can take classes fairly cheaply, maybe even one for free, so I was thinking I might do that with physics if I decide on med school. I’m not going to be able to do biochemistry though, before I graduate, so that’s another thing on top of the 2 physics classes that I might need to take later on if I choose med school.
So far I’ve covered
Gen Chem (AP Credit)
Organic Chem 1 (not 2, taking that next year)
Bio 1 (not 2, taking that next year)
Math (stats and calc)
English (Ap credit, etc)
Community Service (I do a bunch at school)
I’m planning on taking 3 science classes both semesters next year which I know is going to be hellish, so taking a 4th class like physics amidst that is not really an option. Hope these are enough details, I don’t want to overload y’all with to much info.
Thanks for your help!