17 Year old able to get challenger after decayed from 1400 lp to 0 lp master

My main Account decayed from 1400lp to 0 LP Master, stopped playing league due to final exams and end of semester assignments.

Came back a month later and decided to see if I was good enough still. Got challenger in 6 days 50 games went 32 - 16 no duo

I always dealt with ranked anxiety and wanted to really test and see if could confidently play the same way i left off by keeping the same playstyle, habits and was still scared i wouldn't be able to climb. Turns out just like anything in life like school Muscle Memory is legit...

https://preview.redd.it/2m34udkqa6be1.png?width=1101&format=png&auto=webp&s=fcd6783d99092d09820a1adb479242b5503d1003