Only took three years of math..?

Hi everyone,

Here is my situation:

I am a senior in high school and I am beginning to panic because I am realizing more and more than perhaps skipping math my senior year was a mistake. My original thinking was, since I have 4 CREDITS of math, I will be okay, but my friends are worrying me and I really needed some advice.

Here is what I have done:

Freshman Year CMIC 1 and 2 (two credits)
Sophomore Year CMIC 3 (one credit)
Junior Year Discrete Math (one credit)
Total: 4 credits

I have always struggled in Mathematics, but, I have a 3.4 GPA and got a 21 on the ACT, I have taken multiple AP Courses, volunteered plenty and I am in multiple honors clubs in my school. Top 15% of my class.

My plan is to go to a NON Ivy league school (CU Denver/CU Boulder) to be specific and I am wondering what you guys think my chances of getting in without having 4 years of math are? Should I take an online course? Any other advice?

Thank you so much, sorry for so much detail!

The only colleges that it would effect admission at are those you would already be eliminated from based on GPA & ACT score.