You can rent a room (boarding house) with x4 roommates for around P800 per month, you can get a furnished room with utilities paid for about P2k per month. If you are a normal person without any mental issues you would be far happier renting a room for yourself if the budget is tight. But if it is that tight you really shouldn't be moving to a country with absolutely zero social safety nets. A completely routine and treatable health issue can quickly become deadly if you lack the finances to pay the hospital.

You cannot work here on a tourist visa. It really sounds like you moving here would, in your current financial situation, be a horrible idea.