I want to review products for my youtube channel. help?

As Robyn said the companies will come to you. And it is not going to happen overnight. Start doing hauls, reviews and tutorials. Also a contest would attract more subs (doesnt have to be anything big). I watched your videos and so far so good! The only thing is watch your lighting, in a couple I could barely see you. But you are doing great so keep it up! Good luck to you and I did subscribe to you:)