Do you think I should stop making a custom story?

[PatPeter]

I've played over 50 custom stores/total conversion mods and I have yet to get bored of Amnesia. I even play the bad ones and give them ratings with suggestions for the author to improve upon.

Your friend has absolutely no right to make any statements on your custom story if A) he doesn't play Amnesia, B) he doesn't play custom stories, or C) he hasn't played your custom story. Actually, he should just STFU about Amnesia in general.