Ok, so as you noted at the end, sulfuric acid was a bad idea for the pipes.
The problem you will quickly run into is that you poored many chemicals in your pipe, so new chemicals might react with them. It is especially dangerous when you mix bleach and acid, as that can make deadly combat gas (I don’t remember exactly what produces what, but as a rule, avoid cooking various chemicals together, it’s very dangerous).
Bleach is not a dissolvant, it’s a disinfectant. It’s of no use to free a pipe.
To my limited knowledge, the best chemicals are acid chlorhydric or soda. Never ever use both. acid chlorhydric might be bad for the pipes though, so soda is usually better. Acid chlorhydric is best to remove limestone. Soda is best to remove biomater. Both of these are very cheap.
But you already poured chemicals in the pipe, so you need to clean that first. Have water flow in this for some time before you pour anything more into that.
PS: I forgot about the warning : working with chemicals is dangerous. Get gloves, and if possibles, glasses. A chemistry jacket would also protect your clothes, and sometimes your skin.