Grade 11 Sciences Help?

I’ll just make this as short as I can. I’m in Grade 11 and I am currently taking Physics 11. Since I’ve taken Physics my grades have been dropping drastically. I’m currently failing Physics 11 (20–40%) and I need to get out of it right away. Problem is I also want to go into a career that involves computers since I love using computers. I want to get into game design or develop for a large company (e.g. Steam, Activision,) and/or create games from scratch. Will opting out of Physics mean that I can’t pursue a path in computer sciences or computers in general? I need an answer as soon as possible since Term 1 report cards are coming out and I don’t want my Physics mark to be on there. I know its very late in the year for a course change but if I continue on in Physics my grades will keep dropping.