I am really really bad with spelling and grammer. If AI writes what i need to say without adding or taking away facts, its better for both of us that is use it.
Writing is a skill. Use it or lose it. You've set yourself on the track of being perpetually unable to communicate in your own words without a machine intermediary massaging your ideas into grey paste. It's not good for you or your readers.
A lot of people prefer to see the spelling and grammar errors these days, over the default voice of LLMs.
At least prompt it to use a different voice than its usual one.
How will you ever improve if you don't practice?