In order to do an Ollie you've got to feel comfortable leaning back on your tail.
So if you want to lean back on your tail, you want to put pressure down towards the ground and not backwards. If you go backwards too far, you're definitely going to fall.
So remember, you want to put pressure on the tail, slide that front foot up, get your knees up as high as you can, lift the board up off the ground, get it up high, level it out, land, feet over the bolts of course.
Now, if you're having trouble with this trick, you might want to hold onto a fence. That'll help. I know it helped me when I first learned how to do an Ollie.
Now it could be a little bit difficult at first but it's generally like one of the first tricks you need to know how to do in order to progress into other tricks.
A couple of things that will help you do an Ollie is snapping down on your tail really hard. Remember to suck your knees all the way up to your chest to try to get up really high.
At this point, your board might be at an angle, but you want to kick out with your front foot to level the board out.
Once you've done that, both feet should be directly over the bolts and you should be able to land nice and smooth on the ground.
If you land with your foot on the tail, you're probably going to kick back so again, very important to have your feet over the bolts. Suck you knees in and make sure you have a nice, good snap down on that tail.
And that's how you do an Ollie.