Hey,
I feel like this is me too. I did a degree in Natural Sciences and a masters in Nutrition as I wanted to do medicine. I wasn't interested in both subjected but I did them to study medicine. I then started medicine but now I am thinking of doing dentistry as I picked the wrong uni and that ruined the degree for me.
I observed dental students in my uni and noticed that they were doing way more patient and hands on exposure from 1st year than medical students and decided to explore dentistry more. I have to take a year out of my studies anyway but am thinking of reapplying next year for dentistry.
I don't think it's too late to change. If I switch to dentistry, I'd be 30 when I start the course.
But for you, it depends on how far you are into your study. If it's your final year, I would finish it. If it's 2nd year, see if you can change some modules to ones you like? And maybe get a part time job? This helped me for my 1st degree too. I had a few customer service roles and that helped me boost my confidence more. Especially now that I am job hunting in between degrees.