its not haram... if u r treating it as haram or using haram means to invest in it then yes, if u r selling ur house and banking on becoming filthy rich, taking undue risk which is beyond ur means, yes... then it will be haram... but if u are investing a fair amount of money which will not hold ur household to undue stress or put u on wrong paths to attain, you are just fine.
however, to each his own, if u feel its haram then dont do it...
personally speaking, i believe its just fine and have invested in it and have seen the fruits of it.
dont get greedy, always set ur goals and follow them, make an exit plan (realistic) and follow it, take gains when you can... always buy low/dips and sell higher/green, dont ever panic, and dont make domino chain events of bad moves... if u made a bad trade/buy/sell, just walk away and wait till you can recover from that, dont try to fix it emotionally, u will always mess up. Patience is the key here, patience pays off big time... majority of youtubers regarding crypto are idiots that dont know what's going to happen themselves, and mostly give you BS numbers and create hype to make you happy... do your own research, filter out and find out the 2-3 main analysts for ur crypto, and take what they say with a pinch of salt, as they too are just guessing...
good luck...