Ok. I'll do it quick.
I like the idea with Timetravelling and a future you.
Things you need to improve:
You need to practice much more on mapping.
You have a lot of places where you can see through the walls, misplaced walls and just walls that look weird.
I wasn't able to finish the map since i got stuck. I found, that i had to find a "prison-door", but i couldn't find it. Instead i went to the place with the bed that blocks the door. The wall that is broken in that room is walkthrough-able! I could literally walk behind the walls, which was a little weird.
Some rooms and corridors weren't decorated at all... It takes time, but YES it works!
Things i like:
I like that you say that there will be much key-to-door, because there was, and that made me a little less disappointed
So:
-Learn a little bit more mapping.
-Work even more on your story ideas.
-Improve your scripting too.
I know you got the story rated 9, but you still have a lot to improve! It's fine what you made... but keep learning. You're not done.
Trying is the first step to success.