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A print looks darker than the screen
Compare an ordinary print proof before re-editing all your photos.
A glowing screen and a paper print are different viewing situations. Use a measured test to decide whether the file or viewing setup needs adjustment.
Compare under useful conditions
Open the original file and look at the print in ordinary even light. Check whether your screen is unusually bright and whether the paper is in shadow. Do not make a large exposure change while comparing a bright display with a poorly lit print; that can create a new problem in the file.
Make controlled alternatives
Create a few labelled copies with small, deliberate changes. Print them with the same paper and settings so the comparison answers one question. Include a face and a dark area. Keep the untouched master, and avoid assuming one brightness correction will suit every printer or paper.
Save the approved combination
Record the file, paper, printer and setting that produced the preferred proof. Keep that version as a print copy rather than the new archival master. If you change the output method later, make another proof; the previous result documents a particular combination, not a universal guarantee.