You can invest in a number of HYIPs and increase them much faster.But there exists a very big risk and you can lose everything.
HYIP is bad idea if you don't know how to do..,
as I and others said above, buy btc or trading is best choice now...
nowadays hyip are not different than ponzi, actually they are the same, thinl many site proimise a good return based on their good trading, but behind the scene they are essentialyl runnign a simple ponzi
like the cloud mining scam that were running ponzi too
OP should not invest in any of those scam site, it is better at this point(if you want to gamble) to do trading with altcoin, at least you know that it is "luck fault" or your fault(partially) and not that someone stole your coins