i recommend to you just stick on signature campaign and you can
earn without a risk goodluck growing your bitcoins
It will just earn you some bitcoin but not growing it,
I am use bitcoin for pay my bills and it is not enough if only from signature campaign
The safest way is trading bitcoin and pair it with fiat, cause even price drop it will up again later. Diffrent if trading with altcoin, if it got dump it will have no chance to rise again