Visit a site like Easypianobasics.com to learn the foundational elements of learning piano. It's nearly impossible to become a skilled pianist if you don't know the names of the keys, basic scales and so on. Luckily, these things are relatively easy to learn if you just put in a little time studying.
Practice your basics, such as major scale arpeggios until you feel comfortable on the piano. You should be able to start on any note on the piano and play its proper major scale up and down without having to look up the key names.
Visit YouTube and type in the name of a beginner song, followed by "piano tutorial" into the search bar. For example, "Mary Had a Little Lamb Piano Tutorial" will bring up video demonstrations of people not only playing the song, but also teaching you how to play it.
Visit Purelessons.com and search the site's catalog of piano video tutorials by typing the name of a song or artist into the search bar in the upper right-hand corner of the page. Click the "Play" button on the video screen that pops up to view a video tutorial for that song.