You have to wait for some time now, a reason behind the current price hike could be the 25 Oct fork, don't know much about it. Wait for 10-12 days then buy on whatever price you get it and you can sell the Bitcoin Gold and Bitcoins both after that fork.
Well, I'm also regretting my decision to sell it now, I was looking to hold it till 25 Oct but due to some reason I had to sell them. No worries as we are still in profit, Don't we?