Sorry to hear brother that your in a pit of despair atm.
I will tell you what i see from your posts.
You say they hit you in the head, and you werent wearing your hemet of salvation, that they destroyed your spirit. From what i can tell your right about that, you havent had your salvation helmet on for a long time. However demons cannot destroy the spirit / soul. Jesus has final authority on what they can and cant do.
From what you wrote, i believe at one point, probably awhile ago, you started to believe that your salvation has come from the holy spirit, the presence thereof, signs, and works, being pure and doing the right things eg. A work based salvation, and this is why your helmet wasnt on.
Salvation is in Jesus christ, not by any works on our side, but the grace of God, and the work Jesus did. We are not covered by our own righteousness, but by his. We have put on the clothes of christ. It is no righteousness that any man can obtain, but that which is of Jesus, who is above all and nothing can take away that righteousness from us, because it is not ours.
Did you receive the Spirit by the works of the law, or by believing what you heard?
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Think back to when you first received the holy spirit. Were you sinless when you received the holy spirit? Where you going out into the world, doing good deeds, and gods work? No, you received it because of faith in Jesus.
At one point of time, you have started to lose sight and understanding of your salvation, and moved to belief of salvation because of the holy spirit.
This gave the devil an oppprtunity to deceive you, if he can cover up the feelings from the holy spirit/ or make you think you have lost the holy spirit, then he can torment you with lies and despair about your salvation and keep you away from God. He tells you the problem is in one direction, when the problem is in another direction, so that you stay in the pit. This is what happened. You keep asking God for the spirit back, and looking inwardly for things you may of done wrong, instead of figuring out what the problem is.
The problem is, and always has been, your lack of understanding and sight about salvation that comes from Jesus. You might know it in your head, but not understand it spiritually.
I say it again! Your belief, faith, and understanding of salvation is wrong, and thats why he chose the head! Its your weak spot. So work on this area.
I suggest praying to God for spiritual revelation, understanding, sight, wisdom and faith about salvation and the work of Jesus on the cross, and spend time researching and reading the versus about salvation, untill you have a solid understanding of it.
The helmet of salvation, is a strong foundation and understanding of salvation, which i believe your missing.
I will pray for these things for you also.