I would suggest that you continue on trading. For me it is the most safe way to grow bitcoin rather than investing it at hyips because most of them are scam but not all, others will last for month but will be eventually become a scam. Or gambling it because we all know that no one gets rich from gambling.
Investing in HYIP is asking for trouble but not all investments are scams, probably one of the easiest ways to make some money is to invest in the bankroll of bitcoin casinos.