Awwww! This make me so warm and fuzzy to hear! I'm eternally grateful for your compliments!
On the enemy side of things, it's very poorly explained, but there's a way to deal with all of them:
For the default enemy, who spawns and despawns and can hear noise, when he's not around, you can move freely, but when he is, you can either conserve your stamina strategically to build distance and gather resources even when he's there, at the price of him eventually catching up to you due to running making noise, or you could walk around quietly and drop items in certain spaces to make noise there and lead him to certain places. One strategy is to immediately spread out all your items upon spawn so that you have easy access to noise lures.
For the weeping angel, just make sure he's always in your line of sight, and sprint past him when you get close.
For the enemy that infects dispensers, just go into the infected area, gather a bit, run out and repeat.
I did really intend to add a proper tutorial, but I had a family member die halfway through development, so I was very stuck for time. I apologise.
Overall, I'm really happy you enjoyed the game! It makes me very happy haha!