i need help now

[draco]

im am sorry i am kinda breaking down. i know that i have high nitrates i have been doing water changes every day about 15%. but it was well on its way down. everything else has been fine. my fish are in a bucket of fresh saltwater and i feel so awful.i have 2 clowns and 2 firefish and a jaw fish. my tank has been going for almost 1 year and i have only had one death ever that was so long ago. were do i start to make this better.