Wrong Last Name on Ticket

Hi! I am not an experienced traveler but I’m going on an international trip in a couple of months with my grandma. She used the wrong last name when booking and I’m hoping it can be changed but I’m not finding much helpful info on Google. I didn’t change my name when I got married but I use my husband’s last name on social media and she booked my ticket under that last name, not the one on my ID or passport. Is it possible to change it? I’m feeling anxious about it haha