now i don't mean i think i'm getting dementia although some might disagree

i had some trauma in my childhood and i think i must of found a way to hide some of my memories but i'm now thinking that it is something i do with day to day life also without meaning to
like recently i was filling out an application form for something and it was asking for the most exciting thing that has happened to me and i couldn't think of anything to put now i most certainly haven't led a dull life and it was only after i had given in and submitted the form that i could remember some exciting things that had happened to me
or when there are threads on here like the english film one i can't think of any films i have seen i just draw a mind blank its like my memories just hide away i know they r there but they just don't wish to come forward willingly
now i was just wondered if anyone else had experience of this and if they know of a way of retraining my mind to remember more readily cause its a huge pain not remembering stuff as easily as others