No, you can’t forgive sin, correct.
Those outside the Apostolic lineage cannot forgive, retain, bind or loose. This was a gift lost for you at protestant rebellion.
“Father who knowest the hearts of all grant upon this Thy servant whom Thou hast chosen for the episcopate to feed Thy holy flock and serve as Thine high priest, that he may minister blamelessly by night and day, that he may unceasingly behold and appropriate Thy countenance and offer to Thee the gifts of Thy holy Church. And that by the high priestly Spirit he may have authority to forgive sins…” Hippolytus, Apostolic Tradition, 3 (A.D. 215).
“The Church holds fast its obedience on either side, by both retaining and remitting sin; heresy is on the one side cruel, and on the other disobedient; wishes to bind what it will not loosen, and will not loosen what it has bound, whereby it condemns itself by its own sentence. For the Lord willed that the power of binding and of loosing should be alike, and sanctioned each by a similar condition…Each is allowed to the Church, neither to heresy, for this power has been entrusted to priests alone. Rightly, therefore, does the Church claim it, which has true priests; heresy, which has not the priests of God, cannot claim it. And by not claiming this power heresy pronounces its own sentence, that not possessing priests it cannot claim priestly power. And so in their shameless obstinacy a shamefaced acknowledgment meets our view. Consider, too, the point that he who has received the Holy Ghost has also received the power of forgiving and of retaining sin. For thus it is written: ‘Receive the Holy Spirit: whosesoever sins ye forgive, they are forgiven unto them, and whosesoever sins ye retain, they are retained.’ So, then, he who has not received power to forgive sins has not received the Holy Spirit. The office of the priest is a gift of the Holy Spirit, and His right it is specially to forgive and to retain sins. How, then, can they claim His gift who distrust His power and His right?” Ambrose, Concerning Repentance, I:7-8 (A.D. 388).
Those that break away from the Apostolic priesthood, lose the gifts and faculties of that priesthood.