On YouTube, by the way, is instruction in proper shooting, and promotion videos. I don't know if you've seen it, but here
From programs would advise Sony Vegas
, say pinnacle studio
is also a cake, but they cost money. For video reviews, probably the standard advice in the style of "more light, more action" may not be appropriate, but to abandon them is not necessary.
Well, in General, speak louder, speak precisely and with dedication, and "people will come". Good luck!