There is no evidence that karma, fate, and destiny affect human lives. The idea of karma originated in Indian religions such as Hinduism and Buddhism, but is also used in the West to mean that good deeds will be rewarded with good results, with the opposite for bad deeds.
Is karma a real thing?
Karma seems to be real when something good or bad happens. Karma is real when it explains why certain people reap rewards and to justify extreme punishment or reward by fate as a result of decisions taking place. In Buddhism, karma primarily means intentional actions in thought, word, and deed, as stated by Tricycle.
Can someone change your destiny?
Every human has the power to change his destiny by changing his karma. Only we can create the future that we want. You have all the power to change your destiny because the God in you is the only God for you, and above all God in you is the only God which has created every creation in this universe.