Hello itsliz12,
It's our understanding from your post, the Do Not Disturb feature on your Apple Watch, keeps turning itself on.
Have you tried restarting your watch since this started happening? If not, let's give it a try. It is a simple step but it may clear the issue you're currently having.
Restart your Apple Watch - Apple Support
We also ask that you restart your iPhone that the watch is paired to.
Restart your iPhone, iPad, or iPod touch - Apple Support
If a restart doesn't work the next step would be to unpair the watch and repair the watch again.
Unpair and erase your Apple Watch - Apple Support
Do you have Do Not Disturb on any other Apple Device? If so, you may want to check the feature for Share Across Devices is enabled. If it is, that would be the cause of the Do Not Disturb turning on.
Settings > Focus > Share Across Devices.
Let us know if you have any questions.
Thank you for using Apple Support Communities.
Take care!