Many pursue happiness but what they need to know is that happiness is already in them. They just need to exercise it. Greed, jealousy and desire are the main obstacles. Happiness is not a destination or a goal. It is about doing good and avoiding evil. Be ambitious but not at the expense of someone or harming someone in the process. Aggressively promoting yourself is fine. We call that marketing. But to promote oneself by plagiarising others’ intellectual rights is not something to be proud of even if no one is aware of that.
I find it a little disturbing when one talks about the preparation they did for the future lives. Don’t live for the future. Live in the present. That is why it is pre-sent. You reap what you sow; the sowing is now. The cause you are doing now. The ‘reaping’ will take care of itself.
One thing I know for sure is that God cannot be the creator of sufferings to test us, as claimed by many, nor a place for sinner called hell of eternal burning. That should not be god, but another sloth like us. Suffering is a manifestation of what we do wrong or not being happy with what we were given. This is commonly called karma or kamma, the manifestation of cause and effect in this present life.
Even in Buddhism, the cause is living this life well, the effectiveness of future lives depend on it. The art lies in contentment.