Thinking of success comes with its challenges that you have t overcome. That way, angel number 323 says you are expanding yourself. It will be the way to assist you when your success is near. So, you have to enrich your mind in such a way that resonates with your thoughts. 

The divine angels are happy and proud of the progress you make in your work. So, you have to continue doing the same and not relaxing. So, 323 symbolic meaning assures you of good things that might happen when you have slim reasoning.

- https://www.sunsigns.org/angel-number-323-meaning/