why u raise pre flop i don't know. you're trying to make a set, so don't need to represent strength so early and scare away the fish if you do hit.
on the flop the pot's like $1.60
half a pot bet doesn't do anything. At these limits, you need to bet at least like 1.20. If called, i'm checking through on the turn
looking for a cheap showdown.
if you checked through on the turn villian probably only makes about a 1/2 pot bet at you on the river which you can call or fold depending on your read.