Ok. Let me see if I can summarize.

+ You've had a swamp, and, thanks to your pool store, your swamp is somewhat less swampy, but it now contains a chemical hobo soup, including copper. Your CYA = ~80 ppm

+ You've added floc, cellulose fiber, copper algaecide among other things.

+ At one point the pool was clear, but now it's cloudy.

+ You've got stains, of unknown origin and yellowish in color.

Is all that correct?

Assuming it is, here are some next steps:

1. As W-M told you STAY away from that store; they are using you as their personal bank!

2. Keep your chlorine level up.

3. Do a complete set of tests, and then fill out this form:
http://pool9.net/pf-pool-form/
You can see what you've entered, here:
http://pool9.net/pf-hist-chart/
I'm not completely clear on the CURRENT condition of the water in your pool -- is any algae still present?

4. Do NOT add any more clarifier, floc, or algaecides. Some of those products are incompatible with each other, and there's really no way to tell which is which. (Even we don't know, because the makers try to hide exactly what they put in their products.)

5. Use a tape measure or yard stick and measure as best you can the WIDTH or diameter of your sand filter.