ask dream questions to a psychology nerd

Have you read Freud's Interpretation of Dreams? I've been meaning to start reading it for a long time!

yes!! I learnt about his theory and study if u want me to explain it to you in full detail or summary if u want :))

why are pools, school hallway, hills with blue sky but nothing can be seen in the horizon, and other of those liminal space thingies so common in dreams?

I always dream of going through these crowded water parks (i don't go there often), going to bathhouses (never been there) and revisiting my childhood school hallway despite looking janky when I think about it.

Im not sure however it could be ur unconscious desire to go to these places and it shows in dreams because of wish fulfilment (meaning we satisfy our unconscious desires during dreaming/sleep.) You (ur conscious mind) might not want to visit these places or have a desire to go to them however ur unconscious mind wants to and is showing you through your dreams! (we dont know if this is accurate as im using freuds theory.)

Is it possible to remember your dream?

You can only remember your dream when ur about to wake up or if your dream gets interuppted!