the question is how employable are you right now? You need to be working EVERY SUMMER in either the field you're studying, or a closely related one. Then, when you go to get hired and are competing against the hundreds of people who graduated in your class, YOU'LL have work experience and they won't. The 4 months between semesters you do stuff on a job, even tedious, boring stuff, is very very important.
go out and get a job.