Let me start by throwing a little spanner into the works.... Allow me the play on semantics for a moment.
I do not feel one ever gets "stuck" in our practice. Why do I say this? Well, simply put, time goes on, karma happens, the world is still revolving... So to say one is "stuck" I feel is inaccurate. Sure, it does "feel" that way but in actual fact when we feel this, we are actually either degenerating or actually improving depending on the direction our thought processes are going.
For example, when we come to an "obstacle" and we think, it is too difficult and I just want to quit, we are actually going on the negative and we are actually creating the causes for us to degenerate but should we think of the obstacle in question as something "positive" that will bring about spiritual growth, then it becomes an improvement... however both can be deemed as being "stuck" because while contemplating we do not think we are actually "moving" but we ARE.
My point being, we have to be mindful of our thoughts as much as our actions!