Listen to my singing?

Can't reach high notes very well, I know I'm not like, good but I
enjoy singing  want to improve, don't be mean, please give me actual
tips on singing. and just wondering.. do u find my voice annoying?

here's the link:

http://www.youtube.com/watch?v=Cs8EVxC3_i4

thanks!

Also, I haven't taken singing lessons. Do you think my voice has
potential enough for singing lessons?