The first and most important thing for you to learn is patience! As the other posters already wrote, it will take months until the strikes of a beginner actually look like strikes. And that is in training, to have good strikes in an actual fight it will take even longer. Even experienced fighters are (or at least should be) constantly working on their basics.
As for your video, I only had a short glance on it. You are too convulsive, you drop your right when punching the jab, you are falling into your punch and your elbow is too high while doing the hook. Don't rush, do your techniques slowly, but correctly. It doesn't help if you're throwing your punches fast and hard in the beginning. On the crontrary, you are only establishing wrong techniques in your motor function.
Edit: And before thinking of combos, be sure to have proper single techniques.
Last edited by Voiceless : 11-19-2010 at 12:46 PM.