What are you even using GPT for? Is it literally just dictating your thoughts into typed words? There are so money speech-to-text things out there that are not AI... On a cursory search for something: https://fosspost.org/open-source-speech-recognition#Top_Open_Source_STTTTS_Systems
If you feel bad about it, then stop using it, period. Life isn't easy, and the way that modern society tries to make convenience the number one goal is a crock of shit. Plan to put effort into your life, you will 1) get more out of it and 2) be less unprepared when situations arise. As a start, maybe practice typing while you talk and dictate your own thoughts into an offline app like Notepad++ or LibreOffice. You'll have the exact same, identical end-result, except you will have done it all using your own abilities. Remember, the typewriter existed long before the computer, and certainly much longer than LLMs. Even Speech-to-Text systems have existed much longer than LLMs...
Or just do like you mentioned, fully embrace wilful ignorance and suppress whatever makes you feel uneasy about using GPT. Eventually, you'll condition yourself into a perfect crop.
Either way, you need to pick a side and lean into it. Being in a tormented limbo will only make everything much worse.