To get started with pheros effectively, you need to have a good read of these two threads:
And these are excellent but do discuss some products that are now discontinued:
After that, all you need to do is choose your pheros, just be yourself and go and have fun!
You may also want to have a search for more specific threads about Asians and pheros. There is a known preference for androsterone-heavy mixes in Asian women, Androstenone is still useful, just you should use less of it rather than more because too much can repel. So something like the light/social/smooth/suave feel of IG should be high on your list - it is also more suitable for your age than the much more mature/heavy status vibe of A314.