I found it easier to write or talk about my UFO experiences when I was younger

 I think as time goes on it is more difficult to speak or write about because with age comes more of a need for maybe preparing for the end of your life at some point. So, by the time you are 70 maybe you have seen just so many things that are amazing or adventurous or whatever that you might not know how to continue to share what you have seen in a useful way.

It's sort of like if you were the first person on earth to see a hippopotamus or a Rhino or something like this or some other kind of amazing being. 

For example, I still remember on the Terai of Nepal in the jungle there pushing my wife up into a tree while a rhino bore down upon us and then running to the nearest other tree I could get into so both of us didn't die by rhino at the time. 

Then when I made it to the tree the rhino was right on my heels and I believed I likely was dead. My arm slightly dislocated at the shoulder and I thought I was done for. But, when you are near dying by rhino you can be very amazing and resourceful in those moments. The first time I was climbing the tree which was at least a 1 foot through tree of some sort the rhino hit the tree at a running pace with his horn and I was almost shaken out of the tree right then. So, I found a good sitting place because I saw he was going to keep ramming the tree. 

I think he went after me rather than my wife in another tree because he sensed or smelled that I was a male and a man and so I was the one to try and kill that day. 

He rammed the tree trying to knock me out of the tree which he almost succeeded by the way a couple of times but the tree held it's ground and stayed standing anyway and finally he got tired of trying to kill me after 5 or 10 minutes and slowly lumbered and wandered away angry and snorting still that he couldn't kill me or my wife. Our children were with the guide 10, 12 and 14 years old in another tree about a block away from where we were by the way. We wanted to get good pictures of the Rhino which we never did because my wife had the camera and the Rhino only attacked me and my tree. We laughed about the absurdity for years even as we rejoiced we both didn't die there.

If you had never heard of a rhino before or a hippo before and someone told you this true story would you believe them?

This is the real problem of genuine UFO stories because they are just beyond belief even if you actually were there at the time. You have nothing to compare them to. 

So, where do you put this in your memories? There is only one useful place: "Anomalies"

Situations that are so unbelievable that you almost can't believe you actually experienced this.

This story about the rhino I experienced in likely March of 1986 on the Terai of Nepal at Royal Chitwan National Park it was called then.

But, these are all things you just have to see to believe!