These are just my view.
Jesus fulfilled the Law we could not; this gave us a new and better covenant.
Trying to do all those Laws is simply pulling leaves of a rotten tree- cut down that rot and be a new planting of the Lord.
Be content to walk in the Spirit (in absolute dependence on the Holy Spirit to lead and empower us to do the Father's will) who leads us in all truth, and you will always be pleasing to God.
What was most of the law? I think these verses are a good example.
Exod 21:23 "But if there is any further injury, then you shall appoint as a penalty life for life,
Exod 21:24 eye for eye, tooth for tooth, hand for hand, foot for foot,
Exod 21:25 burn for burn, wound for wound, bruise for bruise.
Exod 21:26 "If a man strikes the eye of his male or female slave, and destroys it, he shall let him go free on account of his eye.
Exod 21:27 "And if he knocks out a tooth of his male or female slave, he shall let him go free on account of his tooth.
Exod 21:28 "If an ox gores a man or a woman to death, the ox shall surely be stoned and its flesh shall not be eaten; but the owner of the ox shall go unpunished.
Exod 21:29 "If, however, an ox was previously in the habit of goring and its owner has been warned, yet he does not confine it and it kills a man or a woman, the ox shall be stoned and its owner also shall be put to death.
Exod 20:10 but the seventh day is a sabbath of the LORD your God; in it you shall not do any work, you or your son or your daughter, your male or your female servant or your cattle or your sojourner who stays with you.
Exod 35:3 "You shall not kindle a fire in any of your dwellings on the sabbath day."
Lev 1:10 'But if his offering is from the flock, of the sheep or of the goats, for a burnt offering, he shall offer it a male without defect.
Lev 1:11 'He shall slay it on the side of the altar northward before the LORD, and Aaron's sons the priests shall sprinkle its blood around on the altar.
Lev 1:12 'He shall then cut it into its pieces with its head and its suet, and the priest shall arrange them on the wood which is on the fire that is on the altar.
Lev 1:13 'The entrails, however, and the legs he shall wash with water. And the priest shall offer all of it, and offer it up in smoke on the altar; it is a burnt offering, an offering by fire of a soothing aroma to the LORD.
Lev 1:14 'But if his offering to the LORD is a burnt offering of birds, then he shall bring his offering from the turtledoves or from young pigeons.
Lev 1:15 'The priest shall bring it to the altar, and wring off its head and offer it up in smoke on the altar; and its blood is to be drained out on the side of the altar.
It was a bunch of rules about how to behave really, most of it didn't have a lot to do with directly loving you neighbor.
The main exception was Exod 20:1-17 ;. It was mostly about loving God and your neighbor.
The Pharisee used the law as an excuse not to love people. They taught others to do the same.
Mat 23:13
"But woe to you, scribes and Pharisees, hypocrites, because you shut off the kingdom of heaven from people; for you do not enter in yourselves, nor do you allow those who are entering to go in.
Mat 23:15
"Woe to you, scribes and Pharisees, hypocrites, because you travel around on sea and land to make one proselyte; and when he becomes one, you make him twice as much a son of hell as yourselves.
Jesus tried to show them it wasn't all about following the rules, it was supposed to just show us how to love our neighbors.
Mark 3:2 They were watching Him to see if He would heal him on the Sabbath, so that they might accuse Him.
Luke 14:3 And Jesus answered and spoke to the lawyers and Pharisees, saying,
"Is it lawful to heal on the Sabbath, or not?"
Luke 14:4 But they kept silent. And He took hold of him and healed him, and sent him away.
Luke 14:5 And He said to them,
"Which one of you will have a son or an ox fall into a well, and will not immediately pull him out on a Sabbath day?"
Luke 14:6 And they could make no reply to this.
Mat 12:5
"Or have you not read in the Law, that on the Sabbath the priests in the temple break the Sabbath and are innocent?
Mat 12:6
"But I say to you that something greater than the temple is here.
Mat 12:7
"But if you had known what this means, 'I DESIRE COMPASSION, AND NOT A SACRIFICE,' you would not have condemned the innocent. (Prov 21:3; )
Mat 12:8
"For the Son of Man is Lord of the Sabbath."
Mat 12:10 And a man was there whose hand was withered. And they questioned Jesus, asking, "Is it lawful to heal on the Sabbath?"--so that they might accuse Him.
Mat 12:11 And He said to them,
"What man is there among you who has a sheep, and if it falls into a pit on the Sabbath, will he not take hold of it and lift it out?
Mat 12:12
"How much more valuable then is a man than a sheep! So then, it is lawful to do good on the Sabbath."
Mat 12:13 Then He *said to the man,
"Stretch out your hand!" He stretched it out, and it was restored to normal, like the other.
Mat 12:14 But the Pharisees went out and conspired against Him, as to how they might destroy Him.
Mat 23:33
"You serpents, you brood of vipers, how will you escape the sentence of hell?
Rom 13:9 For this, "YOU SHALL NOT COMMIT ADULTERY, YOU SHALL NOT MURDER, YOU SHALL NOT STEAL, YOU SHALL NOT COVET," and if there is any other commandment, it is summed up in this saying, "YOU SHALL LOVE YOUR NEIGHBOR AS YOURSELF."
(of course we should love God also).
1 Jn 4:20 If someone says, "I love God," and hates his brother, he is a liar; for the one who does not love his brother whom he has seen, cannot love God whom he has not seen.
So I agree with you, following all of those rules just for the sake of rules, is never what God really wanted.