Here are the lessons I learnt
1) Don't blindly trust signals, take your time to access and verify it.
If anyone is having legit signal groups, then they can be followed, but even if you are following them, then make sure you do your own research also, don’t just follow them without making your own findings. But I will say as a trader, the best thing is do your own research yourself, don’t depend on anyone.
Is there truly a legitimate trading signal group?
I don't consider this trading signal group credible, although the founder appears to have good intentions toward their members. Members often seem like prey from which they can profit, and sometimes it appears this type of group operates as a pump-and-dump scheme that may manipulate market prices. Use them as one of your references, but don't rely on them entirely.
IMO, mistakes in trading are common, but remember that these errors shouldn't be repeated, we should learn from them. Trading isn't just about making a profit, sometimes we make mistakes that lead us on the path to success.