Thinking of botting a second time after getting banned in November Ban Wave

So I got banned for 6 months for botting (I was botting Herbing and Mining) in the first November Ban Wave. I was totally fine with it as I made enough Gold with it.

Now I already have a new character on another WoW Account on 110 + 860 GS and I'm thinking of starting to bot again but I have some questions that you can maybe answer me.

1. My WoW#3 got banned for six months. I bought WoW#4 after that and created a character that is supposed to bot now. Can I safely buy another WoW Account (WoW#5) and play normally on it when I'm botting on WoW#4.
If I can not play them both at the same time, how do I switch accounts? Do I need to restart the PC/router?

2. Or do I have to create a complete new WoW Account on another Email? Can I / How can I make sure that I can start a complete new account and still bot on my WoW#4 without getting banned on the new account.

3. Will my WoW#4 get banned for 18 months because I was already banned on WoW#3 on the same Email for 6 months?

I'm pretty sure some of you have experienced this situation, so I'm really thankful if you share your knowledge.

Thanks in Advance!