Just a couple of weeks ago bitcoin was blasting over $1000, so I am wondering if anyone made big money by selling their BTC? Now it has came down to $830, even if last week it was close to $900, so I am not seeing getting back to $1000 anytime soon. Any profits or regrets here?

It's even worse. I have Bitcoin and some altcoins, if I would have been a (good) trader and would have had the guts for it, I could have sold all and bought back now, it would have been some 2
BTC easy profit.
But since I didn't have the time to follow the trend closely to take the best profit, I missed the moment. I didn't sell, I didn't buy.
Not a problem anyway, since I expect them to grow again even higher. When my target is reached, then I will sell, but it's quite a long ride until then.