Day's of Hard Work

I find that so many times I question why is this happening? Why can't it just work?
You can see it every where that this is how life is. Plans are changed all the time. I guess the question I am trying to ask is why are things like this? How come some days it feels like you have to fight for every step?

Genesis 3:17 And unto Adam he said, Because thou hast hearkened unto the voice of thy wife, and hast eaten of the tree, of which I commanded thee, saying, Thou shalt not eat of it: cursed is the ground for thy sake; in sorrow shalt thou eat of it all the days of thy life;
18 Thorns also and thistles shall it bring forth to thee; and thou shalt eat the herb of the field;
19 In the sweat of thy face shalt thou eat bread, till thou return unto the ground; for out of it wast thou taken: for dust thou art, and unto dust shalt thou return. (also Romans 8:22,23)

I guess it is what the serpent said we will be like God. We see the good in storing up food for bad times so we work hard to prepare ourselves. We are part God and part dust, or as Paul puts it Romans 8 spirit and flesh.

So where does this bring us for the original question why. I believe if we weren't part God we wouldn't be able to comprehend such a question and we would never worry about it. If we were all God we wouldn't need to worry about it because we would have everything that we need. So what does God want us to do with this human condition?

Romans 8:4 That the righteousness of the law might be fulfilled in us, who walk not after the flesh, but after the Spirit.

I guess the plan is to work hard at it, and to ask God for our every need, because it is impossible by ourselves.

Romans 8:18 For I reckon that the sufferings of this present time are not worthy to be compared with the glory which shall be revealed in us.