It is common to change majors in college. Undergraduate Academic Advisement provides information on choosing, changing or applying to your major.
You need to be accepted into a major by no later than 60 credits completed.
A change in major can influence the time to complete your degree and your financial aid eligibility.
The recommendation is to limit yourself to no more than 12-15 hours of work per week as a full-time college student in order to have enough time for studying.
If you need to work, try to find a job on campus, if possible.
It is important to develop positive behaviors in college. The skills you make now will make you successful in the future.