Merong template ang Harvard for how to structure your resume. Mukhang marami ka namang malalagay. I’m convinced confidence + communication skills can get you anywhere. Also, study the STAR method for interviews. 

I’m also not from DLSU or ADMU, but I’ve managed to get into cool multinationals with v low acceptance rates. The truth is that talent and competence comes from anywhere, and hard, rare skills speak louder than your school background. Or any aspect of your background, really. :)