The name of the song is "This is the end" and the song has a lot of mentions of falling. I am unable to find it anywhere and I am hoping someone knows it or can find it.
A line they rememberam i just hollow shell of myself am i the monster inside my head
ok so i ran the exact lines you posted through a couple lyric sites and they come up empty, which usually means one of two things. either its a tiny artist upload or the track was made for the game itself. roblox shows audio asset ids, so if you remember which game it was, open its page and check the description or the dev group, music credits get listed there a lot. fair warning too, a bunch of creepypasta rp games run ai generated tracks now and those never show up in lyric searches. drop the game name here and ill go digging