Hello Smokeybee38,
Notes is a great application, and it's very important to not freeze unexpectedly. You mentioned having tried some troubleshooting steps that provide a temporary resolution. Did you try the steps outlined in the article linked below?
If an app unexpectedly quits, stops responding, or won't open
If you haven't tried those steps, please do so next. If you continue to have issues after those steps, and you're not having issues with different applications please reach out to an available support channel through the Get Support website.
Have a great day!