I don't remember my GPA in undergrad but it was underwhelming (like 2.4-2.5ish). I didn't know how to study and honestly wasn't very committed to education at the time. I didn't know what I wanted to do as a career until an internship senior year showed me I wanted to get into the pathology field. After graduation I ended up working and taking requisite science classes at community colleges and crushing those, before enrolling in a pre-med post bacc. program that I did pretty well in and got accepted into grad school.
The post bacc. program was crucial for me, its where I learned how to study and what is required from me to do well academically. I ended up getting my masters but that certificate from the post bacc. program is my most proud academic achievement. I went through alot of tough times and learned alot about myself to get that certificate. I'm gonna get it framed lol. I would recommend looking into possible postbacc. programs in a field your interested in to show that you're able to pull better grades.