There are people who have suffered way more than you. Does that invalidate any opinion you have on your personal struggle? Of course not. Should you stop writing about it? Of course not. So why are you down on the author? She very carefully points out that she is talking about her personal experience and in no way generalise that experience to include or somehow fix problems for everybody else. If her experience gives you some ideas for how to improve your own situation then great! If not then so what? It might help others so it is useful.
I’m down on the terminology and framing. Most of what you wrote is not about that.
She does not carefully say she possibly was not that depressed. At no point did she think how would [clinically] depressed people feel with this written and equivocating her experience with theirs.
I wrote in a sibling reply, there would likely be universal negative response if she said she had [high level] autism [for a few months] and did stuff to fix it. Which would be the correct response.