You need to mulligan more aggressively for early game cards (1 drops like dire mole and alley cat). A lot of your games started with you unable to play much out the gate. This will allow you to maintain tempo.

Another thing to keep in mind is to not tilt! By tilt I mean get angry, upset, discouraged by the randomness -- this is absolutely part of the game. In your last match, I feel your frustration when your opponent goes into top deck mode and draws the exact cards needed. Try not it let to get to you because it can definitely affect your next few games.