So this is just my opinion, ofcourse - but just glancing over your channel.. Overall its good - I am not immediately turned off. I like your banner, pretty solid. The volume, for me, is to low on your voice and to high on your music. I can hear you but its not as easy - you might try tweaking both. Make sure you are using tags to the utmost. I'm not saying abuse or misuse, but ensure that you are tagging as much as you can.
Additionally, reach out and do collabs.. even if its with people whom have less subs then you. Commenting on other videos, commenting here. Social media.. Have and use twitter and facebook constantly..not just to pimp your videos but just do posts all the time..
Hope this helps! It's a marathon, not a sprint. Slowcooker not a microwave.. I.e.. takes time, lots of time.