Step1:Pick a cool name.If the name you wanted is not avalible try a different one
Step2:Make daily videos and always give good feedback to your subscribers
Step3:Entertain people with funny things or whatever you think is good
Step4:There is no reason to make videos if youre not having fun making them so entertain yourself
Step5:Have fun making videos as it is good that everybody is happy while watching one of your videos

I hope this guide helped