great idea, opening a real business from bitcoin investment profits is the right decision, maybe you have to divide 50% to invest again and 50% for business. thus you have 2 sources of income, bitcoin investment for long-term income and business to meet your daily needs. Everyone should have the same mindset as you 
Just to add here a bit, only do business if you are confident in it. You can't just get a source of income from any business, instead you can loose a lot of money if you are not dedicated and give time. Maybe I got a different opinion because for me, I just trade btc and reinvest the profits again at the lows and Im never upset with my strategy till now. More profitable than any business I could do