professional branding

Hey guys, doing some graphics to make some money to fund my YouTube channel. My Twitter is @JasonSupremee Please contact me there if you want a thumbnail made. Don't restrict yourself to the types of thumbnails displayed below as I am pretty versatile with my designs. Hope we can make something...

So, I wanted to make my channel branding look really good but the problem is i cant think of a logo. I see that other people already have really nice logos and I'm thinking that It's maybe the reason why they all have more subscribers than me. Also If you could help me with improving my branding...