join a free group is not a bad idea if you want to learn something about crypto,but if you are talking about paid groups.
i am totally against it,because most of them are scammer and they are only looking for their own benefit.
just learn something from people and do not put your back completely onto them,watch them and learn from them.
also it is recommended for you to create your own strategy by looking at our current market and experts strategy.
try to learn something technical here ;
https://www.tradingview.com/ (it's totally free,and you can chat with other people regarding our current market and their analysis about it)
Yeah I second that. Trading View is a really good platform because it is community based. The best places to learn are communities that share knowledge, and this is the most comprehensive one I've seen so far. People share their views on a given market and then get positive or negative feedback based on the quality of their analysis.
One warning though is to be careful not to become too dependent on other people's analyses. Don't place the trade unless you too arrived at that conclusion. What I prefer to do is analyze the market myself, arrive at a conclusion, then check a few other people's posts to see if they are on the same page as me.