First off, pack a bit less in the bowl, you're almost to the top, no need to be that high.
Poke smaller holes, and use two coals directly on top of the bowl instead of four around the side. If its smoking out the top, you're burning the tobacco. Not good.
You're coughing too, which means you're probably tasting burning instead of flavor.
If you're inside you wont really need the wind cover. It produces a ton more heat. Wind covers are generally only a good idea if you're smoking in a windy area
or if you're only using one or two coals on a much bigger bowl and want to create extra heat.
Lose the wind cover, two coals in the middle instead of four, smaller holes, little less tobacco in the bowl.