1. The first thing wrong with virtue signaling is that it focuses on one's self and not on God. That breaks God's first great commandment.
2. The second thing wrong with virtue signaling is that it compares our person and actions against one another, instead of testing our thoughts, feelings, desires, and actions by what God says. That tends to break God's second great commandment.
3. The third thing wrong with virtue signaling is that those who do it make up their own standards of righteousness and by doing so they make themselves into false gods as they choose to reject God's absolute standards. That breaks both of God's two great commandments.
4. The fourth thing wrong with virtue signaling is that it is self-deceptive and socially destructive, since no one can save themselves from their own sins no matter how they try to ignore their sins or try to explain them away. By denying their accountability to God's laws, those who use virtue signaling choose to condemn themselves to the eternal consequences of having rejected God's law, God's standards, and His only plan of salvation.
However, IF you want to avoid making yourself into a false god and avoid the false thinking of virtue signaling, I strongly suggest that you humbly and prayerfully ask God to teach you what He wants you to do with your life, as you read the books of John and Romans (in the King James Bible that God has preserved for English speaking people for over 400 years). God bless you to make peace with Him according to what He says, for there is no other true peace in this life or the next, apart from what God has said and preserved for us since the beginning of His Creation.