How to become a successful beauty YouTuber?

Successful beauty guru?
Basically I recently started my beauty videos but because of exams, I couldn't be very active on YouTube.

Last week, I started posting videos again and I went from 146 subcribers to 249:)

I would like to know, what kind of videos do people like to watch on beauty channels? And which videos are the most popular?

My last video was a DIY which is what I've noticed a lot in my subscription box from popular youtubers lately.

What other videos do you recommend doing to get more views and subcribers?

Also i'm thinking of getting a Nikon dslr or a Canon possibly.

Nikon D5200 didn't click 999 photos with inbuilt intervalometer. Why?

OK, I found that there's a built in intervalometer in D5200.
I did the set up a night for star trail photography. Camera's battery was full, memory card was empty (16 GB). Now I set the no. Of shots to 999 with interval of 6 secs each.
My intention was to take as many shots as I can till the battery dies. But to my surprise, the camera stopped taking photos after some 160-170 shots. I dunno what happened. Battery wasn't exhausted, there was space in the memory card. Then I again started taking the photos.
Can anybody help me understand that why the camera didn't click 999 shots or clicked photos till battery died or till memory card got full?

On my Nikon D5300, i saw a dust spot I clean the sensor and mirror. It did not go away?

On my Nikon D5300, i saw a dust spot I clean the sensor and mirror. It did not go away?

Added (1). I had a better look. I found that dust speck is inside of camera. Inside side of the focus screen. How do I get this clean? I watched you tube videos of Nikon and canon cameras focus screen been replaced and clean. It looks simple enough. Should I do it or better to take it to a camera shop and let them do it. I KNOW this does not affect the image but its right in the middle of screen so huge distraction.
I'm an electronic engineer so i do work with very fragile circuits and steady hands

Good site to learn about cameras?

I'm 17 and still have a year left of school, but I'd like to enter a film university. I have been told I have the "director's eye", as when I think of a scene I know the shot, lighting, angle, etc that I want. However, I have close to 0 knowledge of how cameras work, including lens, focus, etc and all technical terms that accompany the art. Is there a website or even book that could help me learn how to achieve a certain feel to a scene using colors and lighting, the camera vocabulary, etc?

People with nikon cameras?

Hey so i was wondering if some nikon owners could give me a review of their camera(s)… I'm looking for a nikon i'm just trying to find the right one.

Are those point and shoot cameras that look like DSLR any good? From nikon?

Are those point and shoot cameras that look like DSLR any good? From nikon? - 1

Nikon camera: how do you overcome the problem of aperture in live view mode?

I posted a similar question but typed exposure instead of aperture xD

Nikon camera: how do you overcome the problem of exposure in live view mode?

Nikon camera: how do you overcome the problem of exposure in live view mode? - 1

Are canon and nikon digital SLR operating systems very different from one another?

I'm a visual communications student and will have photography later this year. I have my eyes set on nikon d5500 cause its the best camera which fits my budget. The problem is that i think my professors would be teaching with the help of canon dslrs (for demonstration purposes) and i don't want to get stuck if they talk about some setting change that applies to canon but doesn't apply to nikon. My canon alternative would be the t6s, but it doesn't pull me toward it cause of the AA filter and lower quality… Also its a little bit more pricey than the nikon d5500.

please help and i'm open to suggestions on the d5500 and t6s.

Added (1). by lower quality, i mean lower quality images(sharpness).

I don't know what camera to buy?

I wanna buy a dslr camera but I don't know which one to get? What should I look for in a good camera? Does higher megapixel mean better quality? Which brand? Nikon, sony, canon?

I'm no professional, I only need it for holidays, family pics, videos, everyday etc.

List me a few good cameras please.