Why do I feel this sense of loss still?

Hi all! A year ago, I lost my ex partner of four years and my career. The ex was not a loss (which I came to later) but my career was a big loss. I worked hard for years and was dismissed on graduation day. I had job offers and it was just devastating. My parents are just so amazing for how they helped me through and remain strong that I was able to pick myself up apply to some programs (got rejected from them all) decided to do phlebotomy and it took awhile to my license and all but I ended up getting a job at my dream hospital with good pay at 37 an hour. I even found an amazing partner who listens and respects me. But I can't help keep thinking about my past career and how much money I would have made even though I'm only 20 dollars off or so. Any advice?

Why do I feel this sense of loss still?
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