I've been going out and drinking with strangers I meet online, doing momols, or just fucking around the city. I even have 2 flings rn.

You are playing a very dangerous field. Please be very careful. I'm sure you are using protection but please keep in mind that you can still catch something even if there is no penetration (i.e. kissing, oral, mutual masterbation, any exposure to your partner's body fluids). Some infections like herpes do not have a cure (yet). Napaka-common ng HSV2 (virus responsible for genital herpes) and HPV (virus responsible for genital warts and certain types of cancers in both males and females), na halos lahat ng nakakasalamuha mo most likely have it and are unknowingly passing it to the other people they sleep with. Not to mention other concerns like rape, assault or worse. Many have posted about their personal experiences here. Temporary pleasures also come with dangers.

I really want to stop but feeling ko if I stop doing those I'll be sad again. I hate dealing with sadness. I hate crying. Kaya I do reckless things to divert my attention para di ko ma-feel 'yong emotion na 'yon. I know I'm a bad person now, super aware ako, it's just that I can't stop and I don't know how.

What you are doing right now will get old pretty fast. You need a different kind of diversion. You're only experiencing temporary highs (endorphins). You know how to stop it, I think you're just afraid to because of when the high wears off. You just cut the cord. There's no weaning off it. Decide one day to stop and stop. Cold-turkey. You can do it.

You're not a bad person. You are just misguided and a bit lost which is a phase. Many of us have been there. Hell, I've been through that. Which frankly I think you do need to hear because it's the truth. Defiancy is part of youth, I get it. Even if you don't have a good relationship with your parents, they know when you are not doing well. I don't know what sort of dynamics and you have with them and how they are as parents but may I suggest building a relationship with them. All things begin at home. If you don't have a good relationship with your family, you look for that validation elsewhere and whatever validation these strangers give you are deceitful, insincere, and temporary.