Specializing in math & stats

Im currently 1st year life sci but i lowk wanna specialize in math now.

I know Ill have to take Math 1LT3 but im confused on if i have to take Lin Algebra or any Computer Science courses... and if i have to do so, ill have to take both in the winter term?

My next sem:
Psych 1xx3
Bio 1a03
bio 1m03
Chem 1aa3
Innovate 1z03

Im thinking of switching Psych with Math 1lt3 but then idk if theres even spots for math 1b03 or any other cs classes and i needed input on what i should do... i decided this swtich very late