unfortunately i also gave up on the hobby, but for your gold fish situation. You should immediately take out the ones that has ick and treat him right away in a quarantine tank. But so you know, by the sound of your fishes being all on the bottom and not active most likely that they will not make it and sometimes by adding the treatment will make it worst. You must have done something big or stir around the tank too much and stress the fish out or even poor water quality, that's why they got ick..or did you put in some new fish? but most of the time i find that with new hobbyist, it's mostly because you overfeed it, and with gold fish it's even worst cus they shit like crazy and will not stop eating so you have to change water alot...if i were you...do a water change on the original tank and add some salt and see if they get any better...Remember, don't feed it too much..