Hm, to me there are three aspects to comic-making. One, the art side, the visuals that actually go into the panels. Two, the writing side, scripting, dialogue, that stuff. Three, the layout, blending the visuals and text into a cohesive, legible unit.
I don't think I've seen any videos that covers all three things together (then again I don't really watch tutorials, I do however read articles). So it might help us help you if you specify which part of the process you'd like help in.