How to account for bad luck?

How would one counter around bad luck? I generally play using around 10 or so 'core' cards I use but lately them and the cards that I use to draw them have been shuffled to the bottem half of my deck consistently. I do not mulligan cause generally I draw a decent hand and do well for the first turn or two then I dont pick up anything good for the remainder of the game or anything.

So essentially, what is a good deck build that won't rely on drawing the right card?