Help with tank

[IssohsMommy]

OK I know this isn't a no no but I'm a semi Newbie I have had my Betta since July and I'm having lots of problems and I have read your guys post and you all make sense so I thought someone one could help me with my problem. Well first I learned the hard way that you NEVER trust a LFS employee I have Had tons of problems cause of it. First I got my Betta I got black gravel it turned my tank really gray cloudy even though I spent a long time trying to get all the dust out if it. Then I got a Bigger tank because everyone said my tank was too small I had a 3 gallon now I have a 5 gallon. Now this is where my real problem started. I got my tank set up I got rid of the black gravel I got Betta stones the small marble like stones. the first night my tank was crystal clear next morning I woke up not so crystal clear but clear after a couple of weeks I figured my tank had gone through it's cycle cause Petco told me that after 2 or 3 weeks it should be balanced I went in to get a snail they told me my nitrates were up really High and that I was at the end of my cycle but because my nitrates were up so high that I was going to kill my fish so they to me to buy easy balance and it has Nitraban in it and it is just suppose to even out my tank completely well I went home followed the directions next morning it turned like a yellowish colored cloudy water read online that cloudy yellow water is a sign of decomposing waste so I figured that was what the stuff was suppose to do so I had to get the yellow out of the water so I did a 50% water change and then it was pretty clear again waited 2 weeks went back to Petco to get my water tested again they told me my nitrates were still up just not as bad and it was because I didn't take out my filter I said oops went home took out the filter nitrates went all the way down BUT then I went back a couple weeks later and I they told me my nitrites were up so apparently (this is what they told me) that my fish tank started it's cycle over why you my ask I have NO idea I didn't change filter media I did a 10% water change that's it so I figured it had to be the easy balance or something! well now I'm So over it did a 60% water change put spring water in my tank cause they told me my water was too soft out of my tap I was using tap water with aqua safe to make sure it took the chlorine out. well I after I did that I haven't touched it cause I'm afraid cause its clear but I have another problem issoh my fish has a little white dot on his side but it's not a lump and its not sprinkles like salt or sugar so I don't think it's ick so if any one can Help me with anyone this I know it's a lot and it's probably in the wrong section up I'm new to this and it won't let me start a new post Thank you Have a great Day!