Enjoying Life

Hello coaches,
I had an interesting experience recently where I looked at old photos of myself on a vacation . I remember that even though I was in this beautiful location I was suffering inside. I look back at a lot of my life and I am always trying to solve some problem; like my job or marriage etc. I feel like I am very much going to regret spending my life this way. I am grateful for the thought work and learning how my mind works as it gives me hope that I can stop this cycle of seeing my life as some problem that needs immediate fixing. However, now I have the problem of fixing all these thoughts causing suffering!!! Here is a possible model:
C life
T I have problems that need fixing
F struggle
A ruminate and not be present
R have regret on how I spent my days

C life
F joy
R enjoy life
Thank you!