luck is the probability of good things happen to you.
1) Occurrence - by "going out" - meeting people, this increases the pool as well as reduce / balance concentration of "rotten" vs "good" relations. (increasing 人运)
2) Increase chances by doing good - positive energy accumulates due to the "One good deed deserves another" effect. (increasing 人运)
3) Reduce the bad habits that could accumulate bad karma, especially those that are born naturally.
To understand your character can check any sort of fortune telling / psychology analysis channels. (increasing 人运)
4) Situate yourself in areas / location that would alleviate your good characteristic while minimising bad ones. People with down to earth (Earth) traits should be comfortable in office and labs than to land their jobs in travelling related job i.e sales, international relations (Air) traits. (increasing 地运)
5) Dont obstinately go against the macro environment, i.e insisting you can control the trend of a falling share by will or investing on a prevailing dying trend. This either inadvertently rewrites fate of the others if succeeded or flood oneself with karma upon failure. (逆天运 against Fate). This not only alters the original Fate that was written, which might include good luck, but also creates new occurrences for bad luck. (increasing 天运).
6) Dont actively pursue 1) ~ 5) but instead silently accept what Fate has install for you. Passiveness has higher probability. Ever wonder those that dun believe in 运 always have better luck? Aka 傻人有傻福。 They just be themselves can attract already. I believe luck is an energy similar to quantum physics.
"When you look at it is a particle, when not, it is a wave"
"When you believe in *(insert any form of belief/fortune telling), your fate is written, there is only one outcome. If you 'dont believe it', the luck flows towards you in waves of ups and downs. It is definitely more than a single chance.
But that doesnt mean you do nothing, it just mean you know and do what is right.