When we have a Ambition it means that our heart, soul, mind everything should unite together to get the focus on it. one focus at a time there is no second thought, should nt bother about failures and stumbling blocks ahead of us. Just the focus alone will get us success.
What if we keep changing our focus all the time according to different situations, then the focus on the success is lost in all the thoughts that we have. Dont worry about all the failures we are going to face, failures will help us to learn things the way we shouldnt be doing. Even if we totally fail in all the attempt and plan to drop the whole of the idea then the failures will show us the next best focus to succeed and this time the effort will be much lesser than the earlier one.