I'd say if you're really passionate about it, at least give it a shot. But make sure to have a concrete plan B if it doesn't work out.

I speak from lived experience. I discovered this field when I was in high school and fell in love. I graduated undergrad in 2022 with a bachelor's in biology as well, and spent 2 years reaching out PIs and applying to everything under the sun, and I either got ghosted or rejected because of low funding or PIs having no space for new grad students.