Steem is kind of tough for quick profits because it's so inflationary... I would try with Steem Dollars if I was going for a quick profit because if you buy when they're in the 85-90 cent range or lower, you're almost guaranteed to be able to turn a profit at some point because the range is somewhat predictable.

One thing you could try with Steem is using the SteemDown website to see when a bunch of whales are about to get they're payout of Steem, because then they may go dump on the exchanges. If you see the price drop hard on a day like that theres a good chance it will rebound soon after... at least for a day or two.