Hi Donovan, and welcome to the forum!!

When you say your levels are too high, what exactly do you mean? Can you post results for your chlorine and pH, taken with your kit? If your chlorine is higher than what the yellow scale will register, you can always dilute the pool water 1:1 with distilled water, mix, and test from that--and multiply your test result x 2. It's a ballpark, but it gives us more information than "too high".

What was the ingredient in the shock? How does your water look?

Sunlight will bring the chlorine down (as will a large bather load ), but you may still be okay to swim...