Your parents are probably footing a large electricity bill for this running hardware unless there is a revenue stream for your services? Either way, hats off to your folks for supporting your interest.
About the noise, my room has a small mechanical room and that's where the servers are located, the noise can't be heard from the rest of the room.
I was in a similar situation regarding storage. I ended up having to upgrade the drives for fewer bigger ones but there are other ways to reduce power consumption like putting your storage server on a timer and turning on WoL so that you can wake it up out of those hours if you need to. Obviously this is not possible if you are serving files to other users 24/7.