EDIT: I had to change the whole question up to reword it properly as the Access Point stuff had no relevancy to the main question.
As the title suggests, I wanted to give my Pi a static IP Address when connected to an ethernet port, one where you could just connect to it remotely as soon as it gained access to the internet. I thought I could do this just by following the tutorials online on setting a static address on my ethernet interface, but it turned out that the static IP had to be in range with the given IP, meaning in my case that I would have to set my Pi's static address to the address given by my PC's ethernet, being 192.168.137.1. I started becoming more confused, as I realised that this IP would have to then change whenever I went to a different location and connected through their ethernet there.
Is there a solution to all this?