Website at a stall

So I built my website from a wordpress platform. I can't load videos on it. It states its too big. I am not sure what to do now. Wait..I remember I can cut and paste the Utube link into it. Great idea. I sat in class for Social Media and building your Website; however, I am still technically computer challenged. It is sort of discouraging since I need to polish and load up videos. It needs to be a finish product before I market it. Oh joys of start up business... but I would not trade it for the world.