Just came across a quote about enthusiasm making mountains look like clay piles and it just struck me that after getting with my toxic ex I ended up losing my enthusiasm and optimism, I guess getting fucked over can make one a bit of a cynic and I feel like that cynicism has served it's purpose by leading me to going my own way and I want to know how to make that jump to a new optimism and enthusiasm, not the delusional enthusiasm of a child but the refined enthusiasm of a man.

Anyone managed to make that leap? Any sort of guidance or advice would be much appreciated.