sms issues

Hello! For some reason SMS wont send on my apple watch series 5 cellular (T-mobile).

I've tried unpairing, setting up as new watch, turning off/on iMessage/SMS, signing out of iCloud, and all that. Not sure what other options there are left. If anyone can help I would appreciate it :(

Turning on/off iMessage seems to make it work for about 5min and then it goes back to not working. Sometimes it'll show a green progress bar and say that it didn't send, but it actually does. This is frustrating to say the least.

11 Pro Max: 13.5.1

Watch: 6.2.6