Hello watchthis,
Thanks for choosing the Apple Support Communities. If we understand correctly, you are unable to type a word on your Apple Watch without it auto correcting. We can understand why you'd reach out for a solution.
If you add a word to your dictionary, it will no longer auto correct it. Check out this resource for more info.
Set up auto-correction and add words to your spelling dictionary in Pages, Numbers, and Keynote
Also, we see you came from a great resource for connecting your Apple Watch to Wi-Fi. When you try to connect to Wi-Fi, is your iPhone nearby? If so, you shouldn't need to connect to Wi-Fi manually.
Cheers!