Advice needed about Job!

Hey! I need advice! I'm 19 and currently not living at home because I needed to take Calculus for Engineers over the summer. I also need money so I got 2 jobs. However I am working 40-50 hours a week now with 2 hours of class each day and 4 hours+ of homework each day... I am getting stressed beyond belief and worried I might not pass the class, which is the only reason I'm not home in the first place. Should I quit one of my jobs even though I just started 2 months ago?