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google will help you in no time ;-) I'm going through the same but it's no witchcraft. Get your hands dirty and inform yourself

so that is not for crypto investor? right? I have no paper on that market, then It seems reasonable that I don't have to look that.. am I missing something?

ETF has nothing to do with cryptos but you might want to give it a try once you made somr profits in the crazy crypto market since it's less riscy :-) go google ETF and read into it and maybe get a book as I did for example

thanks for your kindness. bless you. when the time comes, I will.