Established member? nope.
Collect ten unmerited posts? nope.
Looking at your smerit distribution mostly in Russia board where Russia is the top activity local board in this forum, your chance is almost impossible.
If you want to be a merit source:
1. Be a somewhat established member.
2. Collect TEN posts written in the last couple of months by other people that have not received nearly enough merit for how good they are, and post quotes for them all in a new Meta thread. The point of this is to demonstrate your ability to give out merit usefully.
3. We will take a look at your history and maybe make you a source.
AFAIK becoming merit sources doesn't make you earn, you get paid if you're become a moderator. Unfortunately it's really hard to become a moderator, even there was an user becoming the top 1 highest report still doesn't make him become a moderator.