Hehe...that's probably my problem.
At my age the old memory just ain't what it used to be.
Euhhmmm... maybe it's a nice thing to do: write down on paper (or whatever) by yourself some thing to remember

I use many paper lol ... but I have a visual memory!
By writing things on paper .. it come also in my memory, but I also can read all over again what I write down ...
....
But now that I have just gotten myself a minion, things have taken a turn for the better regarding combat. I can now actually kill some enemies without gulping down 10 potions
Yes, with a little investigation in how to go stronger per better gear or skills or ...
I have killed L18 enemies in Orobas Fjords when I was L13 and I needed potions, but not more that 2 or 3 (limited healing) on one enemie

. If I need to many potions, I go first search for other enemies or another strategy