Friend it is very important to understand culture, language and context. Do you understand Hebrew, Greek and Aramaic. You will find that your verses and the context you are using them in is not accurate. I myself use to have the same issues. However it is imperative to get meanings and understanding from the original languages and culture FIRST!!! Not from a modern-day Westernized perspective or modern English.
To make the claims and judgement of being in serious trouble reveals a level of spiritual immaturity, and self-righteousness. However one gets used to that after a while.
Paul declares the following
NKJ Romans 7:12 Therefore the law is holy, and the commandment holy and just and good.
NKJ Romans 7:7 What shall we say then? Is the law sin? Certainly not! On the contrary, I would not have known sin except through the law. For I would not have known covetousness unless the law had said, "You shall not covet."
NKJ 1 Timothy 1:8 But we know that the law is good if one uses it lawfully,
Seems like you have some contradictions you need to reconcile. I have none as when the bible is understood in its original context meaning language and culture both the OT and the NT are in perfect harmony as you would expect THE WORD OF GOD to be.
To say the law is done away with is saying God makes mistakes and that His word is erroneous and cannot be trusted as infallible.
I will stick to what our Messiah says
Matt. 5:17-18 NKJ
17 "Do not think that I came to destroy the Law or the Prophets. I did not come to destroy but to fulfill.
18 "For assuredly, I say to you, till heaven and earth pass away, one jot or one tittle will by no means pass from the law till all is fulfilled.
Last time I looked heaven and earth are still here!!! And before you say something like "See He fulfilled" fulfill does not mean do away with in any way, shape or form. But like stated above one needs to understand these words from the original languages and not an English meaning of these terms.
This will help
May the Holy Spirit bring conviction and tear away the veil, as He did for me.
Blessings and Shalom