Don't daytrade unless you're absolutely sure you know what you're doing, don't take random advice like "RIPPLE WILL MOON BY 420% IN THE NEXT 3 DAYS" from shills/wannabe experts, and educate yourself on the actual underlying tech. Andreas Antonopoulos' Youtube channel is excellent.
Oh and remember to panic sell at the next crash, then FOMO back in at the start of the next bubble.