So sad that you lost 103 bitcoins, Which is worth more but there is no point in crying over spilled milk work hard you can still invest on mining bitcoins and it might take time and effort to reach that point. I know some of the early investors on bitcoins have sold bitcoins for perils as they themselves did not have  the idea that this bitcoins invention could reach the highest point of $ 20000 USD last year. There is still potentiality for the bitcoins to reach $ 1 million  dollar so it is better to invest on bitcoins  to earn profits as mining is not that easy as in the early stages of bitcoin.