I believe/trust in the death, burial and resurrection of Christ for salvation and not in the symbol of water baptism. As Greek scholar AT Robertson explains: The translation "into" makes Paul say that the union with Christ was brought to pass by means of baptism, which is not his idea, for Paul was not a sacramentarian.....So here "unto his death," "in relation to his death," which relation Paul proceeds to explain by the symbolism of the ordinance.
https://www.biblestudytools.com/commentaries/robertsons-word-pictures/romans/romans-6-3.html
It should be said also that a symbol is not the reality, but the picture of the reality.
https://www.biblestudytools.com/commentaries/robertsons-word-pictures/romans/romans-6-4.html
Before mentioning baptism in chapter 6, Paul had repeatedly emphasized that FAITH, not baptism is the instrumental cause of salvation/justification (Romans 1:16, 3:22-30; 4:4-6, 13; 5:1). That is when the old man was put to death and united in the likeness of His death, which
water baptism symbolizes and pictures. Righteousness is "imputed to us who believe in Him who raised up Jesus our Lord from the dead, who was delivered up because of our offenses, and was raised up because of our justification" (Romans 4:24,25).
Believers receive the benefits of Christ’s death and resurrection and through faith, believers are spiritually united to Him (delivered and raised up with Him). If baptism is taken as the instrumental cause, then Paul contradicts what he had established before, namely that justification is by FAITH, not baptism. *Hermeneutics. Paul clearly teaches that what is
signified in baptism (buried and raised with Christ) actually
occurs "through faith." Christians are "buried with Him in baptism, in which you also were
raised with Him through faith in the working of God, who raised Him from the dead" (Colossians 2:12).
Justification on account of union in Christ's death, burial and resurrection is brought about "through faith" and is symbolized by baptizing the new believer.