Atleast 5-months of unemployment

Hi! I am a fresh graduate of BS Industrial Engineering. I got a job offer for a Graduate Trainee Program that would start by Feb 2027. The JO is still being finalized as of the moment and is still waiting for approval from the top management. I still have pending applications from several MT programs. I would just like to ask for advice or suggestions on what should I do during the 5-month period that I would spend without a job.

I am currently thinking of finding a remote part time job given na I am currently here in Bicol. I also applied in internships and is also considering of building my portfolio and taking up free courses for certifications.