I won't pretend that anything I say will disuade you from rejecting Yeshua the Messiah. Before anyone goes off on the use of the name Yeshua, know that it is simply a Aramaic/Hebrew to English translation of Jesus. There is no 'deception' in its use as so many have asserted.
By your statement, you take great pride in the fact that Judaism is older than Christianity and that is one of the reasons Christians are 'irked' at Jews. Frankly, I know of no Christian who feels this way. Possibly, you're reflecting your Jewish pride when you make such an assertion.
Christians embrace both the Torah and the New Testament because they are the Word of God. I can say with virtual certainty that Judaism being older than Christianity is not why Jews irk some Christians.
You've also stated that Christians are irked because Jews reject the gospel. This may be true for a few Christians but from my experience, Christians generally fall into two camps when it comes to Jews. The first camp is, "they are Jews and Jews reject Christ - don't bother with them." The second camp is, "they are Jews and the good news about Jesus the Messiah is to be preached to the Jew first, therefore I will share the gospel and/or my testimony concerning my Christian experience with Jews."
There are nuances that Christians might embrace that you may not understand. One of them is from the New Testament scripture, where Jesus instructs Believers to "not throw your pearls before swine, lest they turn and tear/hurt you". This admonition is concerning anyone hostile to the gospel - not just unbelieving Jews. Jesus also told his disciples to go into cities and teach them about Him and if those places reject them, that they (disciples)are to kick the dirt off their shoes and go to the next city. Essentially what Jesus is saying is that if people reject me, don't further waste your time. In addition to Scripture, Christians 'should' be led by the Holy Spirit (Ruach Hako'desh) who indwells the Christian. Again - no deception here. Ruach Hako'desh is Hebrew for Holy Spirit.
What am I saying, Christians are commanded to evangelize the world, to the Jew first and then the Gentile. However, this there are nuances to this command previously explained.
I bid you sincere Shalom through the Prince of Prince (Sar-shalom). His name is Jesus (Yeshua).
Ooops!! It should have read, "English to Aramaic/Hebrew translation of Jesus."
Should have read, "Prince of Peace (Sar-shalom)"
I really, really need to do a better job of proof-reading.