Simple: do not sell this 1BTC for 10 years.
This is the best answer.
This is not true. If you do not have a need for your money in the near future then you should try to somehow put it to use. You should try to somehow make it grow.
Do not depend on bitcoin or any altcoin. Live your life the same way as everyone do. Make this one a educated hobby and take time to learn these things. You can invest spare cash but DO NOT invest everything you have. You can gamble for fun and DO NOT gamble your life away.