College senior looking for advice

Hi all, I am a senior and a foreign student at a non-target school. I wanted to pursue a career in I-banking since my freshman year. I worked very hard and earned a lot of credentials in my undergraduate career: choosing a hard major, interning at three of the Big 4, serving leadership positions in 3-4 student organizations. Although my credentials are as good as a lot of students who ended up in I-banks from my school, my GPA dropped during my junior year and it currently stands at a 3.5 which discouraged me from applying. I ended up accepting a FT offer from one of the Big 4's (Advisory) I interned at but when I see all the junior class around me prep for the internships, I feel very conflicted if I made the right decision. I have a lot of things going against me: my GPA, foreign student status, non-target school. But sometimes I wonder if I could have just gone for it? I feel like it is easier to prepare for the interviews in college as you're surrounded by so many resources. Then again, some friends tell me that my first job out of college is just that - my first job and I can always switch careers. I just wanted to know what you all think! Thanks in advance.