I will be using it to gamble to double it up. 
So you simply mean those 10 bitcoins don't have any real value to you that you won't do something good with them but will gamble them to double them up?
That is really sick! With 10 bitcoins you can start a small business around your area that will earn you profits every time, don't you like that?
And those 10 bitcoins can earn a lot of profits for you even if you hold them for some days because the price of bitcoin is never stable, sell them when it is high and buy again when it is lower.
Gambling all of the 10 btc given to you is not the wisest decision you can ever make. That is not a responsible handling of blessings you received from others.
The OP would rather appreciate it if you allocate at least 10% or more to charity and the rest will be for investment.
That way, those 10 btc will be place to a well respectable and meaningful route.