Taken most literally - yes, judgement, the internal critic. You have an idea and then you start to question it, question yourself, your abilities, your ability to convey your worth, if any, in applications and such. It's easy, from the perspective of those on the ground, to look up at the shining angels, the golden glow around them, and think: I can never be like that, that good. There are too many things holding me back. Why bother dreaming, trying.
On the other hand, in the sense that this card is often representative of the idea of 'the call' I can see the issue being one in which...you hear it, yes, recognize that you must make a decision, take action; recognize and stop at that - dither, overwhelmed.
Lastly, Judgement can be a card of rebirth, renewal, entering into a new Aeon and starting things all over again from scratch. The idea that change must be radical, all or nothing, go away from the familiar completely...that it is only by throwing out all of the old that you can move forward...this can either lead you to lose far more than you really needed to or, unable to give up so much at once, end up doing nothing at all.
Obstacles yes: self criticism, indecision, all or nothing attitudes. All things that I have been guilty of in the past. Better to walk away from these indeed.