My best strategy in investing is that whenever I earned some or income is coming in I able to make it to half so that I able to put the other one into my wallet and the other one to my investment which in some lending so that even though I used my money the other half will grow because I put it in some investment. I suggest to you that if you want to have a good one try investing in some ICO here or campaigns.
To stay safe, you could invest into Bitcoin and diversify the rest of your money into other cryptocurrencies that are worth holding for the long term. Altcoins usually have greater price movements than Bitcoin, and if you manage to analyze their patterns of ups and downs, you'd be able to multiply your investment in no time
The problem mostly is waiting, if BTC dips all diversified money on other cryptos also suffered thus if you can't wait and feels it could dip deeper then it began to frustrate you. control your emotions, that is..