Just that -- do those of you with agents let them/encourage them to read some of a project you're still working on, and, if so, at what stage? Do you find it helpful?
My first novel didn't sell, and I've been working on something new for a few months, which has hit a bit of a wall. My agent has asked if I would like her to read it. My instinct is not to at this point, as my confidence about it is currently low, and I worry that feedback from someone whose primary investment is in whether she can sell it (especially when my first didn't sell) will dent my belief in the project further. (My first novel was already at a very polished stage when she started to represent me, so although she was involved in a final revision, she wasn't there for the messier parts of its composition.)
I realise this sounds rather wet, but I feel a bit at sea about it atm -- I think it's a bit out of hand at 67k words and isn't really working. But I just wondered whether other people working on non-debut novels have found their agent's feedback en route helpful or not, or at what point they have let their agent read it.
Thank you!