Still have green, cloudy water after following pool store advice

[Jess09]

I am using test strips.. Honestly, this is my first pool and we jay moved here in October so I'm super new at this. I did a 30% water change right after I realized I had caused an algae bloom. I have a sand filter and I added 50 pounds of sand last Thursday. I went to the pool store today and the lady gave me some stuff called Algimycin Yellow. She says to add that then two bags of shock 5 minutes later then in the morning add a half a bottle of stabilized chlorinator. You think that's going to help? I already added the first two things.. This pool stuff is a lot harder than I thought it would be.

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Oh.. The shock ingredients that I used tonight were calcium hypochlorite 78%, other ingredients 22%.
It's poolite brand.
They said not to buy the pool chemicals at Walmart (because that's where I was getting my shock and Ph increasers and decreasers). I don't know if that was a sashes pitch or if it is true but since I'm at my wit's end with trying to get the pool clean I got the stuff at their store.

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