Question: Do we have karma in Islam?

Answer: If you mean karma in the sense that God makes us see the consequences of our actions in this world, then yes.

Question: Does Islam believe in free will?

Answer: Yes

Question: Does the environment affect our the range of our free choices in this world according to Islam?

Answer: Yes

Question: If our free will and range of choices are limited, as Islam teaches, how can we increase them?

Answer: Through prayer and repentance. By growing closer to God, we unshackle ourselves from the cultural dictates that unconsciously shape so many of our choices.

Question: Who does our actions and deeds impact the most?

Answer: Our own souls