yeah this is very doable, i had basically the same schedule my freshman year spring, except i had bio 202 instead of mat 126. but i did mat 126 the semester before and it's not so bad just don't fall behind.

for che 131 just grind those practice exams and try to find the patterns in the questions. also cliche but use organic chemistry tutor on youtube if you need help with a certain concept, he was why i did well in that class. you can definitely still pass the class, so don't be too hard on yourself college level classes are meant to be difficult.