Maria I feel your pain. I have only been on Medium for a few weeks, and I have so many questions, questions about whether there is such a thing as a print preview (yes I'm new!) for example, and also, feedback. I have only had one post pass curation, so there's obviously something (s) I am doing wrongly.
A little bit of hand-holding, some words of assurance, explanation as to why things are rejected would go a long way to making me feel worthy of this place to write.
It's a two-way street. I'm pretty sure Medium needs writers as much as we need them.