Oh I see you use a different Bible that believes Jesus does not have faith and so do you believe it was our faith that saved ourselves and not the faith of Jesus Christ?
context and grammar decide the issue
Galatians 2:15–16 (ESV) — 15 We ourselves are Jews by birth and not Gentile sinners; 16 yet we know that a person is not justified by works of the law but through faith in Jesus Christ,
so we also have believed in Christ Jesus, in order to be justified by faith in Christ and not by works of the law, because by works of the law no one will be justified.
Galatians 2:16 (LSB) — 16 nevertheless knowing that a man is not justified by the works of the Law but through faith in Jesus Christ, even
we have believed in Christ Jesus, so that we may be justified by faith in Christ and not by the works of the Law; since by the works of the Law no flesh will be justified.
Galatians 2:15–16 (NIV) — 15 “We who are Jews by birth and not sinful Gentiles 16 know that a person is not justified by the works of the law, but by faith in Jesus Christ. So
we, too, have put our faith in Christ Jesus that we may be justified by faith in Christ and not by the works of the law, because by the works of the law no one will be justified.
Galatians 2:15–16 (NASB 2020) — 15 “We are Jews by nature and not sinners from the Gentiles; 16 nevertheless, knowing that a person is not justified by works of the Law but through faith in Christ Jesus, even
we have believed in Christ Jesus, so that we may be justified by faith in Christ and not by works of the Law; since by works of the Law no flesh will be justified.
Galatians 2:16 (KJV 1900) — 16 Knowing that a man is not justified by the works of the law, but by the faith of Jesus Christ,
even we have believed in Jesus Christ, that we might be justified by the faith of Christ, and not by the works of the law: for by the works of the law shall no flesh be justified.
but no matter which translation employed one cannot escape the fact one must believe in Christ to be justified