Which is better to get as a 19-year old student? Postal ID or PhilHealth ID?

Hello po! I am a 19 y.o student po and currently my only form of government ID is my ePhil ID and Digital ID (my national ID still hasn't arrived yet). I'm at a point of my life na madalas na ako hinihingan ng valid ID, especially since I'm the only of-age na anak sa pamilya ko po ngayon. I was wondering which ID ang mas mabilis ang process AND hindi magastos? (I am only on scholarship)

+ I'm currently staying in MNL for uni — which ID po yung hindi ko kakailanganin umuwi to my hometown to apply?

Thank you po in advance!

Edit: Thank you po for those na sumagot! I'll be talking to my guardian about getting a passport soon. I like that one reply said na it might last until I'm 29? Will still be looking for getting a Postal, but passport muna ang priority ko rn. Thank you po!