3 years ago it would take weeks for me to get from silver 2 to gold 4. It was way more challanging and rewarding in my old account. Now I made it in just one day. And I don't even play lol anymore, I was certainly better in my silver 1 3 years ago days than now. I was just lucky to be on the unfairly unbalanced team from the matchmaker.
Btw, the highest elo this account ever got before was silver 4 or smthng