Well, the truth is.
God uses reality to train us up. It hasn't reach the stage whereby the supernatural is dorminant.
God provides us with wisdom to deal with reality.
Yes, what is seen is temporarily(reality)
The unseen is eternal(spiritual)
The thing with you is. You think that just because you are in Christ, you do not think you have to live in reality anymore.
The fact is reality gets even real when you are in Christ.
Because we are in Christ, We have to undergo persecution etc. Things will no longer go as smoothly as before. We also get more attack from Satan. Things can actually get worse.
Christians in Islam countries even have to die in the name of Christ.
The thing is, through reality, we can also confirm our identity in Christ. When people persecute us because we speak the truth. When people persecute us because we reveal our identity in Christ, it just confirms even more that we are Children of God.
You think that because we are in Christ, we will proper(Things will get better)
The thing is, we will not. In fact, because we are in Christ, we may even be poorer for that(materialistically) because we use our resources to help those in need.
The thing is, the verse which you posted. Yes, we fix our eyes unseen. Not what is seen.
So that is why even though we may suffer from a materialistic point of view or even sometimes an emotional or social point of view,
we look forward because we focus on the eternal things.
Even though our friends or even family will insult us because of our belief. We may even lose dignity. We may even lose material things. But because we are in Christ, we perservere because we are holding on for the hope in the future.
The thing about you is, you are always on the view that God has to do things your way just because you have been saved. You make God your puppet rather then your lord.
You have a wrong view of who God is. That is why you are bitter and unhappy most of the time in your life.