I used to think I made my own luck, it was the groundwork I did that lead to Larry and Sergey wanting to hire me, it was the work I did in creating my own company, etc. I thought it was all me.
And I still believe that I had to do all the things to get some wealth but I've watched much more talented people do all the right things and get nowhere (and I've watch far less talented people get quite wealthy).
There is an element of luck, you have to do your part but you can do your part and never be at the right place at the right time. I think that's the part that is luck, you can't control what the rest of the world is doing and unless you can predict the future, it's luck.
Signed,
luckydude, retired at 54.