The Missing Garden?

Missing Garden!!!

Then the LORD God said, "Behold, the man has become like one of Us, knowing good and evil; and now, he might stretch out his hand, and take also from the tree of life, and eat, and live forever "-- therefore the LORD God sent him out from the garden of Eden, to cultivate the ground from which he was taken. So He drove the man out; and at the east of the garden of Eden He stationed the cherubim and the flaming sword which turned every direction to guard the way to the tree of life.

(Genesis 3:22:24)

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Reading the above passages raises a few of problems, 

firstly Yahweh feared his own creation after man eat the forbidden fruit  which would turn him into a God?.  Secondly as a punishment Yahweh sends man out of the garden so he can work for himself and make a living? Thirdly we read that Yahweh stationed a cherubim and flaming sword which guarded the tree of life? Who would even eat from the tree if Yahweh banished Adam and Eve? Surely the serpent wouldn't of because if he did he wouldn't of suggest man and women to eat it rather he would of tried it himself. 

This raises another problem according to Christians the garden of Eden was on earth, So where is it now? It seems like Adam was able to enter it freely as long as he didn't approach the tree of life which was guarded heavily by a flaming sword? So where is this garden now missing?

And Finally the book of revelation tells us the goal of achievement is receiving the tree of life let read the verses before making a commentary:

'He who has an ear, let him hear what the Spirit says to the churches To him who overcomes, I will grant to eat of the tree of life which is in the Paradise of God.' (Revelations 2:7)

"I am the Alpha and the Omega, the first and the last, the beginning and the end." Blessed are those who wash their robes, so that they may have the right to the tree of life, and may enter by the gates into the city (Revelation 22:13-14)

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What's striking about the above verses are that if the blessed ones are those who receive the tree of life what good will that do to them when the very same tree fruit  has been eaten by Adam and eve according to the bible which seems to not have made any difference in them other then knowing right and wrong which any common person knows about?