Ammonium compounds and metals can be a very bad idea, you could create a metal compound or salt that could prove dangerous somewhere in your processing, as there is a possibility of making an explosive compound somewhere in the process, you could come to a place where drying out a fine metal precipitate could explode, or when you tried melting.
I would not use the ammonium nitrate fertilizer in this process.
Not much solder can still be a lot of tin, so I do not see your chances of making this work improve.
Too many different metals in solution = too much of a mess.
Bisulfate just added another impurity.
You need to start from the beginning.
Read Hokes book.
Study the safety section Dealing with waste.
Study the forum.
Start with simple experiments.
Start with simple materials and processes like memory fingers.
Start reading and following the process just like it is written, follow all of the steps in the process, missing small steps may make a big difference, that little detail you think is not important may actually be a very important detail in the overall success of the process, do not change ingredients, do not include or remove steps , or make changes to the process, study the process well and get a good understanding of each step, learn as much as you can of why it works or why it will not work, most recovery or refining actually has many processes involved, each one made to improve the quality, remove unwanted material prepare for later processes to get the values as pure as possible, simple steps or pretreatments like mechanical separation, and removing troublesome metals, incineration of oils or trash, can make a big difference if you recover or lose your valuable metal, basically missing a minor detail can determine if you win or lose in this game.
Look at the words Bisulfate, Bisulfite, that one letter in the word can determine if you get gold or not, if you win or lose, details that seem unimportant can be very important
Do not throw away anything until you understand how to deal with it safely, put a bar of copper metal in the mess, cover it and put it in a safe place for now, start with Hokes, dealing with waste.....