Ah the classic trigger hands! I was the same... but I made my huge mistake with ETH! Sigh... anyway, now I keep everything tucked away in a Ledger... not quite the same as a time-locked contract, but still enough of a pain in the arse to not jump straight at the chance to sell!

My friend did well out of ETH though... I now take his advice... set goals for what you want out of it... so set a price at which you are willing to sell a certain proportion, then stick to that and get what you want and then be happy! He bought a couple of houses....