Question about abundance

Dear Coaches,
After listening to the Result Truth podcast, I feel like I’ve had a major insight into the results I’ve created in my life. On one hand, I’ve created everything I wanted (great job, salary, career trajectory, friends, family, condo, travel, hobbies, etc). But on the other, I feel like I’ve created it all from feelings of scarcity and insecurity – with a lot of willpower and forcing myself behind it. And as I’ve accomplished what I’ve set out to do, I’ve been left with thoughts and feelings of that’s it, not enough, inadequate, and what’s next, as well as the feeling of needing to cling/grasp on tightly to what I have accomplished. And the goals I’ve set for myself (even while in scholars for almost a year) seem to be around accomplishing more, doing more, etc. I’ve heard on calls and read in the ask a coach section about the idea of scarcity and abundance and I have a feeling that’s exactly what’s going on here for me. But I don’t think I’ve come across where these concepts are taught. Could you please recommend podcasts or other readings on how to switch your mindset from living from scarcity to living from abundance? Any other advice would be appreciated.
Thanks so much.