I am sorry that you are feeling this way.
I believe that self-love, belief, worth and confidence are some of the key elements to happiness both in your private and work life, as-well as having a supportive network of family and friends around you.
As Stui, has mentioned it could be a great exercise if you produced a simple and realistic personal development plan, relating to both what your goals are in your career and personal life, and then go out there and make it happen😊
This will provide you with a level of achievement and purpose at work. And remember your current place of work is not your final destination, look at it as a pit stop.
Wishing you the best and finally it’s fantastic that you have a understanding and supportive partner.