How can someone grow without making mistakes?
The truth of the matter is that one can simply grow by taking advantage of learning from other peoples past mistakes, because you literally don't have to make one or have personal experience about losing funds on CEX or altcoins before knowing that saving huge funds in Centralized exchanges are big risk, just as O.P clearly stated as those are his/her two lessons learnt this year as it concerns the forum/crypto world at large.
Even apart from that, some mistakes can lead to life time regret. Some people invested their life savings on altcoins that they thought nothing would happen to, like Luna and FTX token. People only know that there are some foolsing people like that when they take it to social media about the money they lost. Another example is the FTX hack that millions of dollars were stolen. I do say that it is pitying but stupid that some people lost a very high amij tlike life savings that they got nothing to think about that to commit suicide.
There is no possible means someone can grow without making mistake, butbthere are msitakes others have made in the past which should be a lesson instead of being the victim that might lead to life lesson of no recovery. Such mistakes have been made by many crypto users, I do not expect people to still make the same mistakes over and over again.