Yes, all those things.
And sometimes other things one has no control over. E.g., luck.
luck is so very subjective... "born in Century XX vs. born in Century YY" can be called "luck".... Trixie Shuba? luck with abilities in 8-figures given the current rules? or that her parents bought a TV-set which enable her to find out there is figure skating? or the fact that once on ice she realized that 8-figures is her strong point and practiced it to the level which allowed her to win?
Shuba, starting the age of 12-13 was a very mature, pragmatic, reasonable, sensible young lady, she even studied accounting/bookkeeping to help her family's finances and business, when she was 13!!! Plus given other details of her life, where she clearly demonstrated that she will evaluate the rules, the surroundings, the current conditions and restriction, and will find the MAXIMUM BENEFICIAL path/solution/choice. That's not luck - that's use of your brain and an ability to "solve a formula with minimal givens and/or the givens with negatives".
I knew a man, a head of the family who lived into his 90's, a successful man (with almost every member of his immediate and extended family also successful); he accomplished a lot strictly based on his talents/brains/inventions/research. And as to "luck"? Well........ if one can call it "luck"...
This man has a long story - about success without much luck.......
read at your own risk... it is long 
He was a Jew, living in the Czarist time in Russia, he had to deal with 2% quotas for jews being allowed into russian schools and universities (as a boy of 7, knowing this, he studied the text books of 1-2-3 grades to answer "trick question" (the russians had easy entry exam, and jews unofficially had the harder tests/questions to keep them out, and that actually carried over into Soviet times all the way into perestroika)
Then his father died when he was 14, he had 9 bros/sister, he worked (on his own initiative) and went to Russian school school (gymnazia) and later in lyzeum (college equivalent), and had to have all his tests and homeworks perfect and to avoid conflicts so that there is no cause to expel him.
Then WWI, the famines, then Revolution, then famines, then NKV (earlier years KGB) and cleansing, continued anti semitism in all sectors and levels, then WWII and Leningrad Siege, then his wife's father and cousins killed in Kiev in Babiy Yar, then mandatory evacuation of the whole family to the military equipment producing factory in a remote area very much like "gulag" labor camp, then end of WWII and return to Leningrad (St. Pete) only to finding out that the family's apartment was given away to another family (leaning that his family was homeless and has nothing and not even being let into the door of the place to pick up the belongings. that family who occupied the apartment had a member working "in the apparatus of USSR" and any rules of law or decency was not applicable to them).
Then the struggles to find a place to live and a job in Moscow, then Stalin's purges, then Khruchev's "time of appeasement" which came with some crazy laws, then the 70's stagnation, then several refusals by government to immigrate to Israel, then finally a permission for him and wife to immigrate to USA (where his daughter and granddaughter, and later father were already living, then both him and wife finding professional jobs while in their 60's, him being laid of 4 times in 13 years, and still finding professional jobs all into his 70's.... He spoke/was able to communicate in russian, english, latin, greek, german, french, ladino, yiddish, polish, ukrainian, and few more that was enough to travel and even to speak professionally. He knew politics and culture of every major country and not so major... Regardless of several periods of starvation, physical abuse by authorities and just people in russia (pushing out of a seat on a bus - when russian passengers are standing then jews should not be sitting), 2 WW wars (I and II), loosing family members in was, in purges, from hunger, by germans, by KGB, etc, being homeless with wife and child, he not only managed to live but to live till he was 90...
During Czarist times in schools/college he was the "Best Student in the Class", graduated with many honors, in-spite of being a Jew. After the revolution because of his brains and education, he was sent to a Research facility in Leningrad, then after the was once settling in Moscow he soon became Chief Director of Research and Development at the Moscow Central Energy (radiation and heat transfer) Plant. His portrait still hangs in the Honor Raw, in the hall-way of the plant, with ribbons and a list of all the inventions, and yet he was a jew, who left USSR in late 70's ... but his portrait is still there, and younger employees still remember his..... He had no "luck" in any of this.... it was all his brain, intellect, Anglo-Saxon work ethics (he read a lot about them), and education he made sure he gets...
He spent his last decade with members of his family in a beautiful 2-story house, in Berkeley Hills, designed and built by the disciples of FLW (frank lloyd wright), and assisted into his last days by private nurses and! family. That man was rarely unhappy...... it was amazing...
He had no luck...... most of his life he had anti-luck, regardless.... he "always made it" in the worst condition surrounding him... under 4 government systems in Russia, during 2 world wars, being a minority, changing countries....... A person can always make his own luck....unless some people think that a fact of being born is luck... having this or that color hair is "luck" and so on ...
Except this is BS. Hard work == success is part of the fabric of America and we Boomers heard it constantly as we were growing up as well.
