We just got our first pool thinking it would be simple enough to set it all up ourselves and now we're completely lost. The pool is up, just about filled. Where do we start with the chemicals? I went and bought the "Step 1, Step 2, and Step 3" bottles but I'm just getting more lost. I've been reading online about it and everyone says different things. I'm hoping someone could just give me some clear cut advice and steps on how to set up the pool water. It's a 3,800 gallon pool. Please help! Thank you