Scorpion: "What kind of power do we have to determine our destinies?"
We have the power to make decisions that will determine our future positions. The rhyme was unintentional.
Scorpion: "can we save ourselves? Also, save ourselves from what? Wrath? Hell?"
I don't believe in any xtian concept of Hell nor do I believe we should feel as though there is something we need salvation for or to be saved from.
Scorpiom: "What do you beleive happens in the afterlife? Do you beleive we have to give an account to a Supreme being for what we have done in this life and be judged accordingly?
No. I think many people choose to align themselves with that belief largely because there are some who either don't want to or possibly are unable to cope with the idea of having the "wicked" go unpunished.
Scorpion: Also, i see you seem to beleive in re-incarnation, am i right? I used to beleive the same thing when i was a Hindu. We did it all, chanting, mantra, meditating (eg, Yoga etc). Never worked, only made things worse for our lives."
Don't know what you mean by "Never worked, only made things worse for our lives.", but belief in reincarnation did not originate in Hinduism nor is it limited to only Hindus.
Scorpion: "If the world was destroyed in Armageddon (World War 3) ... What would happen to people's spirit's and reincarnation theory?"
Never said the world would be destroyed in any "armageddon."