There is some mic echoing that I noticed in your channel trailer video, y'all should definitely work on that. My overall advice would just be to keep at it and at times y'all might get discouraged and that's when you have to work the hardest. Take regular breaks and review your content, see what works and what does not. When putting together scenes a good fade transition works best. It makes the video less, "Oh I'm here now I'm here" which creates a bit of confusion. Keep up the good work!