There is nothing like bull run in 2019 , so kindly make up your mind and buy little you can afford now and trade small by small till it might become an ocean in soonest, the market is always swinging and that is the the bull that make a little to be a big and never expect the one time run to success.
i do not think will be a next bull like BTC 20k again in near future
l strongly believe that there will be a bull run, looking at history of btc and how the price action movement in past years and currently shows that there will be a bull run comes 2019 , this is not just a hype but is base on fundamental analysis l did and also taking clue from big whales in the industry . most of the whales have started taking a new position for long closing up short positions recently . we should expect a reversal soon ,the whales are not only traders on the cryptocurrency exchanges but they are also in forex market .