Well i think the first thing you have to do here would be to have a goal set up and good for you you already one in mind. I think 100btc is possible in 5 years if you really work for it because really there is money in bitcoin. You just have to really plan on how to do it. For me, well i dont really have a specific amount in mind but i am planning to make bitcoin as one of my major source of income next year. Currently im studying day trading and where to better invest my bitcoins for maximum return. I think it's possible to have bitcoin as my bread and butter in the future