Mods

I just got a Smoke Canyon w side smoker box and man is this thing tough to figure out. Heat is impossible to manage and my fire needs constant attention. I had better luck with my charcoal grill without a firebox. How can i mod this? Should i put tile in smoker box and then a grate on top to raise the flame closer to the opening? What do i need to do to seal this smome leaker also? Thanks boys! Excited to be a new member.