7 btc lost is a pretty steep lesson to learn geeze
I feel sorry for the OP
yeah i've lost at least 40, due to have missed a big opportunity of profit in trading with two old altcoin
but trading is a gabmle, so there is a certain risk involved, there is no lesson to learn, it will happen again and again
If u are first time in trading u need to learn how the coin moving if it is going up or if is going down.