Is it alright to go to language learning school in japan right after high school?

I'm currently in high school and going to graduate soon, I'm pretty sure that I want to settle down in japan at the end like 90% sure.
I'm thinking of going to a language learning school where they also prepare you for EJU so that I can apply to universities in japan for my bachelors, but my parents are worried that it might not be the right decision as there is a chance I don't get a good score in EJU and hence don't get a good university there.
I know that going to japan right after high school can be risky but I don't mind that at all, I'd rather live a risky life that I enjoy than a safe one I don't.
Also currently my japanese level is at N5
Should I do my bachelors in my home country and later come to japan or go to language school right now? or if there are other options you can suggest then please do so

by Consistent_Demand273