Sure. The stupid saying was "If I can do it, anyone can." I maintain that those who say this usually discount a number of factors, such as luck, help and the uniqueness of their own position, which would make it impossible for everyone else to do what they did. Whereupon you demonstrated that your own success was the result of your own cleverness, opportunity, the co-operation of a superior; being in the right place at the right time. Such a combination of serendipitous events are not presented to everyone, even if they did start out clever, which everyone isn't. Thus: your having done it in no way indicates that anyone can.