The lucky part was that I joined the one startup that turned into the runaway success out of the many hundreds that were available to choose from at the time that failed. This was during the height of the first dotcom boom. Next Big Things were a dime a dozen.
You most likely earned the luck you received.
Luck does always belong in the conversation - "All great events hang by a hair, I believe in luck, and the wise man neglects nothing which contributes to his destiny"