doing my college classes in japan

sorry if im in the wrong community but anyways

Im an SPR for Japan (special permanent resident) and have lived in america my whole life. I used to be pretty good at japanese but my lack of use at home has diminished much of my language skills. Im about to graduate highschool and want to take my first semester community college classes online and live with my grandmother in Japan. I plan on doing about 4-5 classes, take some part time language classes in japan, and overall explore more and meet new ppl. My first question is to ppl who take fully online college classes if its manageable and doable considering i want to go out and also take classes for my speaking. Second is if there are any suggestions of what i can do outside of a class to improve my japanese when im there. Are there certain activities, events, or anything at all that can put me in a space where i can meet new ppl without it being so forced? My japanese is good enough to get around and understand ppl most of the time. Cant do conversations regarding heavier topics. Thanks !

by c0tTon_teeTh