OP,as most have already stated, do as you want, (you have already bought the gear, so your GOING to get the bike), but I doubt your as prepared as you think you are, either maturity nor financially). The maturity part comes from your saying your getting the bike to commute to school, but as most have also stated, your not going to be doing that in Jan at -25 or -30 as we just had. So your not looking at it realistically but from youthful exuberance and desire. A bike will also eat up a LOT financially. What happens when you graduate, (presumably your attending university with a specific career in mind as opposed to your current business), and you can't find work in your field, or something beyond your control happens and your business suddenly crashes, (NO one EVER thinks their business will fail)? Will you have enough savings to pay for that condo, the bike and living expenses for say 6 months without ANY income?? Or god forbid you crash and you have to rely on insurance, for IRB, (which not even sure if you would qualify, given your full time student and self employed), which unless you bought a top up maxes out at $400 per week!!!
The one question I have is your doing school full time, plus running your business, WHEN do you think your going to have time to ride? Simply commuting ISN'T riding, and you will want to ride MUCH more, if you love it as much as you profess.
As for family, yes it sounds like there are serious issues. BUT if you crash and are in the hospital, or worse are seriously disabled, WHO is going to help you out? Likely your family, oh wait, you dismissed them and cut all ties. NO ONE, (especially young people), think they are going to crash or even be hurt. So now your relying on a stranger to wipe your ***. They aren't going to bring home made meals, nor "extras" like stuff to read, etc while in a hospital bed with nothing to do all day. Who is going to pay for a tv, (your not making ANY money from your business in hospital)... All things to consider my friend.