Part time/Full time job.

Anyone, please help. I am a university student here in my final semester. I am badly in need of a part-time or full-time job. I speak English fluently and can speak Japanese at around the N2 level, but I do not have any JLPT certificate. I am doing job hunting, but had no luck up until now. I tried every website, mynavi, rikunavi,offerbox,careercross, daijob, gaijinpot, almost everything. My visa is going to expire soon and I am in urgent need of a job. I can not return home because of some issues. If anyone knows any kind of part-time job that I can start as soon as possible would help a lot, as I also need a part-time job also urgently. Please, someone help this poor soul!