2007 Toyota Tundra keeps blowing fuseable link

Hoping someone can help me out. A few weeks ago I turned my truck off only to have it stay running also pulled key out of ignition still running and my battery kept draining. So I went out to try and find a draw and was messing around and didn’t unhook my negative cable and was messing with the alternator and sparks flew. I had no brake lights, ac, radio and my abs, brake, and airbag light was one and would not shift out of park. Finally tracked down the fuseable link and saw that it had blown. Ordered another one put it on thought truck was fixed drove to town and noticed no blinkers and upon trying to use them blew the fuseable link again. Ordered another one put it on fired truck up used non working blinker blew again. Any suggestions