Hello there, LittleLion.
LittleLion said:
I understand that the question may be somewhat vague, but please bear with me.
How bad is it to be a sinner?
In case you mean the eternal consequences - the sinner that rejected Christ will spend his/her immediate afterlife in the World of the Departed Dead (Hades/Sheol) where he/she will continue rejecting God.
Due to his rejection he will "travel" farther away from God and by the time the Great Judgement arrives (sometime in the future) both the inhabitants of the Hades and of the Earth will reach the "peak" of their disobedience to God and will no longer "comprehend" nor hear him due to their "yelling" at him by now, for explanations.
Then they will qualify (due to their insubordination) to be "put outside".
Since there will be only 2 places left the Kingdom of God and the Outside.
MT 8:10 When Jesus heard this, he was astonished and said to those following him, "I tell you the truth, I have not found anyone in Israel with such great faith. 11 I say to you that many will come from the east and the west, and will take their places at the feast with Abraham, Isaac and Jacob in the kingdom of heaven. 12 But the subjects of the kingdom will be thrown outside, into the darkness, where there will be weeping and gnashing of teeth."
If you mean how bad it is to live as a sinner as far as the life on this Earth is concerned?
It is not as bad as it seems.
Actually it is not too bad at all.
In Psalm 73 Asaph was wondering how come the bad guys prosper and don't seem to have problems?
Their afterlife is the real answer to his question, but as far as making a living here for 75 years - sin pays.
LittleLion said:
Should one be infinitely ashamed of being a sinner?
Actually it is very hard being ashamed of something that one does not understand the consequences of.
How can one be ashamed of a lie when he does not know that this lie caused a death of a newborn, for example?
We usually are ashamed when our self-esteem if affected and we feel low and put down - otherwise, we get used to it rather quickly. Biblically it is called " a hardening of the heart". Eventually we'll get so used to doing it to ourselves, that God himself will help us do it.
So, no. You cannot be ashamed of something that you have no understanding of.
On the other hand, though, in the World of the Departed Dead (Hades/Sheol) we will be so shamed that we will be very quite due to shame.
I cannot imagine the circumstances or the scenario. But I understand that we will understand/see all the consequences of our sins and that will make a natural impression of shame on us.
PS 31:14 But as for me, I trust in Thee, O LORD, I say, "Thou art my God." 15 My times are in Thy hand; Deliver me from the hand of my enemies, and from those who persecute me. 16 Make Thy face to shine upon Thy servant; Save me in Thy lovingkindness. 17 Let me not be put to shame, O LORD, for I call upon Thee; Let the wicked be put to shame, let them be silent in Sheol. 18 Let the lying lips be dumb, Which speak arrogantly against the righteous With pride and contempt.
LittleLion said:
I can say with surety that I hate sin. I avoid it and try to act without sin.
In order to hate sin one needs to understand sin and its consequences.
You probably hate violence, deceit, abuse of children even "gluttony"

.
All these affect our personal well-being. It threatens our "me". So, one hates what can potentially harm him.
But hating sin means hating all the unrighteousness.
The one that hates (and this is a very strong emotion) will stand up in the crowd of his peers and condemn any wrongdoing that is against God.
LittleLion said:
But this doesn't seem to bring me anywhere further.
It is not designed to.
To come to Christ one needs to come "as you are" - no shower is necessary.
LittleLion said:
I can eat, drink and sleep. This is all I can do. And think about God. I have no lust to give in to, no other desire but to get out of this darkness I am in now.
Good.
LittleLion said:
My flesh does not war against the Spirit. It is something else that wars against the Spirit.
There a 2 things that are in war against the Spirit in your specific case LittleLion (since we know each other a bit) -
1. You yourself (not your habits), but you yourself.
2. The spirit of the Satan that is with you.
It is your soul that is crying out - you are arguing against it.
The answer to it is quite simple - GET UP, FIND/CALL A BORN-AGAIN BELIVER, PRAY TO CHRIST TO COME INTO YOUR LIFE.
Do not worry, the LittleLion, God will take over once you GET UP.
Also, it is not the answers that you are looking for, the LittleLion, but the satisfaction of your soul.
PS 63:5 My soul will be satisfied as with the richest of foods; with singing lips my mouth will praise you.
Love,
Ed