@Cel77
Keep a diary. Keeps you grounded , and you'll be pleased to read about all those memories/thoughts years later.
Brilliant advice. I've kept a 5 year diary ever since I was a child, now 60, so I've got a box full of them. I am constantly looking back to remind myself not just what I did on random dates decades ago, but how I felt, etc. They're brilliant to help me draw a line in the sand at various points in my life and help me understand what led me to take certain actions/not take certain actions, which really help me understand myself. Also really interesting to look back to the last 2/3/4/5 years on a daily basis to see what I was doing and how I felt. The only "downer" is getting a new one every 5 years when there's nothing to look back on during the first year, so I keep my previous one on my bedside table too and try to remember to look back.
DH really wishes he'd done the same. He really regrets being unable to "go back in time" to help him remember things from his past. At least he can "dip in" to my diary memories for time we've been together, and he often reads random bits from the years before we got together to gain an insight into what I did and who I was before we met. (Thankfully nothing in there that I'm ashamed of!!).