I need some help with my ollie?

You are suppose to push your front foot down as the board comes around your front foot grabs and pushes the front down while the back foot holds the tail in place allowing a roll off to much pushing in the front and you step off the front not enough and you wheelie off the back. I think you can find what you want on line so see what you can find on fueltv.com and then go to their link with tonyhawk.com there also is great stuff on U-tube. I see quite often the lack of acceptance for not being able to do something and allowing change so you can even adapt to that change. You must be doing something wrong. So while reading all you can and watching all the videos be critical of what the others are doing break it down in slow motion and write down all you see that is part of it. Be more critical of your self because the harder you push yourself the sooner your brain will adapt to the needed change.