Plus how can plebs like us win against the professional traders, who studied harder, who are simply better day-traders, who are also very well-capitalized, and who utilize an army of bots for each of their trades? We simply can't and if you compare the ROI of "day-traders" and the HODLers in BitcoinTalk, I'm confident that 90% of the Bitcoin HODLers will have a larger ROI than the "day-traders". They actually lost units counted in Bitcoin. 
It's very true that there are very few winners when it comes to day trading. We can also say that 90% of day traders are losers. If we see previous price chart of Bitcoin, from that we can conclude that for large ROI you need to HODL for longer duration. Even experienced people found it hard to handle day trading and for new people day trading is a big NO. If someone really want to go for day trading then he must put small part of his capital for that matter.