Listen as much audio spoken by native speakers as you can. My guess is that children programs are best. Maybe some Hebrew dubbed cartoons that you are already familiar with. First priority is to get your brain trained on the sounds of the language.
Speak with a native speaker that knows English. You can use http://livemocha.com/ for this.
Speak badly but speak.
From my personal experience, biggest hurdle in learning a new language is actually using it. Getting past the “shame” filter of your brain. If you accept that mistakes are unavoidable and just start speaking, you will get a lot of practice and you will improve. Of course, it’s nice having a professional aware of the fact that you are a beginner, giving you clear and precise feedback. :)
Robert Kegan’s wikipedia entry has a pretty good summary of the idea.
This 15 min. youtube video is also a nice introduction.
In short, the real reason people don’t do the things they consciously want to do might be related to a sort of immune system that tries to keep things as they are because there are competing commitments that steam from unconscious assumptions. e.g. a person might not take their heart medication because taking medication is associated with end of life and they have a competing commitment to not perceive themselves as being at the end of their life.