i have a theory about "I can hold everything together for only so long" Since Polka Dot is the only one who can go through other channels by themselves, everything is depending on her to hold everything from collapsing (the channels being destroyed by clock or something) but she can only do so for a short time.
gg,i rember when i beat ToS as my first chall, didnt get as happy as u but i didnt realise how important breaking a difficulty barrier was so uh, gg on ToSP too (that tower is ass)