I’m not sure if I should go to language school or to college, which will be more easier and allow me to work part time better ?

Hi 22F here, I’m almost finished with my uni by the end of this year and I really want to move to Japan but I have zero work experience so I’m not really sure if I should apply for language school and work
Part time or apply for 2 years college and work part time? Ah I’ve also passed N4 level but I guess I’m not too confident in my Japanese yet. If there’s any advice from anyone that’s done one of the two I would really appreciate it, thank you!!