I read your first hub.. it was a good one. Welcome to Hubpages! Was it your intention to just add a link to the videos? You can add the videos in your hub if you want to. Instead of adding a link, choose add a video capsule. Edit the capsule and click Youtube, find the video you want and then click "share". Copy the URL and paste it to video capsule. Then save.
Ok about traffic. If you want fellow hubbers to read your hubs and leave you comments, read other hubs and if you liked them, leave a comment. Ask questions like this in forums
For outside traffic, you can use Twitter and Facebook to start with. I also promote my hubs at SheToldMe. I'm also fairly new here so I'm still learning myself. But I get good traffic and am earning consistently on Adsense and HP Ads.. not much, but consistent, and a little on Amazon.
Use Google Adwords to get the right keywords for your hub so the google bots could find it. Go to the learning center and read how to do stuffs here in Hubpages. Do the Tutorials.
On my first month here in Hubpages, I did the 30hubs in 30days challenge... that gave me a good start. This month we have the April Challenge, I'm doing that as well. You can also join the weekly Hubmob, have fun writing about different topics weekly http://hubpages.com/forum/topic/73274
Right now we have Writing Contest going on and you can win some money. Lots of things to do here. Do a little community work so other hubbers get to know you.
Good luck and have fun. (sorry my answer got too long but I hope it helps a little)