Tips & Tricks Any thing I could improved?

[RewindThatGaming]

Hello, Guys I like to know am I doing good job in YouTube gaming channel and is there anything I could improved? And I know I need Intro, Outro and Thumbnails I can't do those because I don't have a PC to do because I using librarian PC to upload my phone games and upload at my dads house to upload my PS4 games.

Here my YouTube channel link https://www.youtube.com/channel/UCiQJXLRBIKEQ9TSE7OYIoQQ

 

[Mr Cotton]

Maybe there is a friend's PC you can use? The first video I used with thumbnails and proper editing/commentary surpassed all my other videos combined in a couple days. Being able to do these things seem to be as important as frequently uploading content. I'm by means no big channel this is just what I've experienced

 

[RewindThatGaming]

It might sounds funny all my friends don't have PC just phones is there a app I can do thumbnails on my Galaxy Samsung Tablet 3?