Before the age of internet and of Facebook many atheists in the people have a hard time looking for people of the same belief or lack of belief. Someone one who shares the same passion without being an asshole at the same time. Make fun of religion but not the person.
Worry no more because non-belief is rising fast in the Philippines.
Who can I join? You can start with the Filipino Freethinkers.
So I need to be an atheist? Nope, you can keep your belief in God if you want to. We just want a more secular Philippines for a start.