I did two small lines of cocaine on Sunday around 6-7pm... Then I got drug tested on Tuesday around 6ish pm... Can someone please help me understand how long can cocaine stay in your body for, and if my chances of passing this test are high or low?

Sorry to be a pessimist.

The current drug tests (in the US anyway) are VERY sensitive. It is extremely unlikely that you will pass.

Probably 99% of the cocaine that you did was gone in a couple of days. The trouble is that the tests can easily detect the remaining 1%.