How do I become a scientist

Question: Is it possible for me to pursue a field in science with these grades? I'm sure most academic institutions would look past sophomore year and, hopefully, realize I have potential...

My grades -

Freshman year: 1st semester - B's and A's every class; 2nd semester - failed every class except health and intro. sci;

Sophomore year: 1st semester - failed ever class except Amer. history, biology, and English; 2nd semester - failed every single class;

Junior year(currently 1st semester, starting second semester Feb. 01): 1st semester - B's every class(online school);

>>1

failed ever class except Amer. history, biology, and English
This would imply you are taking 6 or more courses per semester?  Why are you taking that many courses?   Are you in high school?

Regardless, you have no future in science.  Go work for the city.