4 or 5?

so im thinking about switching to 4 classes instead of having 5 what do you think? should i load myself up with 5 classes?
i think i should take it slowly before taking so much classes because honesltly do you think having 5 classes plus work after class and on weekends is good
i hardly have study time and room to breath. so yea i think ill just stick with 4. but i really need to know what i should do.
you guys think i can handle 5 classes?