Hello:) ! I have been playing League since season 3, where i already achieved Diamond 3 in the first season. Then i was able to achieve more ammbitious ranks which people want so hard, without even experiencing something like being hardstucked due to my pure Mindset.
Ex (and currently) rank 1&2 (with 2 accounts) Flexq 3v3
Peak Grandmaster Soloq
Challenger Flexq 5v5.
And remember Self-belief and hard work will always earn you success.