just tybe the link here :)
Research your keywords by finding videos you aspire to be like, and viewing the source in order to find the keywords they have used. Type into a google keyword planner to help you work out which are best for you- ie things that are searched for a lot but have a low google ads demand.
Also share your video in lots of relevant places where you audience is hanging out. Be clear on who your audience is before creating your videos and do some research (or get someone else to do it for you) to find out where they hang out.
Pay to get your most popular videos pushed up on you tube using their ad service.
more tips here