Just recently, I was tempted to check my first ever Bitcoin wallet to see what I have done in the past. I was so depressed seeing the volume of Bitcoin that have passed through my wallet without me saving a reasonable portion of it.
My first wallet was a throwaway paper wallet. That was in 2017. I can't remember using that wallet more than twice before I got rid of it because I didn't know how to restore it in case anything went wrong. I understand that feeling you shared here but mine wasn't that of depression. It was more of bewilderment for me. Bewilderment in the sense that I wondered what I did with all that Bitcoin that went through the second wallet I got which I used for quite a while. It was a Blockchain wallet. The few times I checked it and saw how big the figures in it were, I shuddered. The $40, $50 BTC there then had appreciated to $300 - $500. I know that's how today's price will also appreciate in the next few years to go and make many of us shudder.