It's nothing, you wasn't lucky you just made half dollar. Luck is when you invest couple dollars and make hundreds. I don't like freebitco.in, high house edge and I think you won something little, but for bigger wins there is no chance. I had very unlucky experience with their dices and auto not, to not mention lottery, I never get anything, not even once in couple of months. And I earned tickets with claiming faucets and plus I was buying tickets.
Um, just because it's a small win, doesn't mean it's not lucky... The odds of hitting 8888 are pretty low, and I got it twice in one day.
Also, you kinda contradiction yourself here... You say you played there and were unlucky,
cause you won nothing, yet,
I won there, and (according to you) it's not luck? Well, I didn't know luck had a face value.
In case you're wondering: it's nice living with small expectations, and relishing myself in the small amount of money I win: all for free.