There will be many who will have done it and will do it.
You will reach the standard - however the key will be in your performance and luck - nothing is guaranteed. From what I hear it's not only based on performance but your rounded experience and people skills.
If you pass selection and get in and your performance is to the level - you may have a chance.
Some will succeed and others will not - it's all about your confidence, amount of work you put in and luck!
Its another case of take a risk - suck it and see .
Best of luck