I've resisted co pilot and auto complete because when interview time comes and you have to write code outside of your toolset, you'll realize you haven't committed things so well to memory. This bit me earlier on in my career after working in visual studios for a long time. I now code almost exclusively in vim.
I'm not saying you shouldn't use it, but before you go into technical parts of interviews I would recommend you do some coding without all the bells and whistles tools.