I'm curious about something, is solving harder problems makes you able to solve the easier ones ?, let's say that i find problems with rating $$${X}$$$ are currently challenging for me, so if i just jump to problems with rating $$${Y \gt X}$$$ and get comfortable solving these (will be much more difficult but it's already difficult anyways) does it make me able to solve problems with rating $$${R \lt Y}$$$ ?