Here it is a really big and great thing that you are starting to work in the cryptocurrency Field at very low age , So it will be better for you to understand about it to understand in step by step .
Now came at the investment strategy , as usual if you don't have time to spend with the cryptocurrency market fluctuations then you should buy Bitcoin and hold for long term , but if you have 1-2 hours daily then you should kept your eye open in the market and make buy only those coin which are getting fluctuated daily with 10 to 20% , so more better is to buy them daily and sell in the same day with small profit .
Now came at the 10× profit in week , this is totally unknown thing for everyone because it all depends upon the prediction that how the coins price increase according to your idea , so make small profit is not a bad idea to make money in Field ( but it is also a truth that you can make big in very small time depending upon your luck ) .