It is so important not to feel compelled to write just because you signed up to 200WaD. It really doesn't matter if you miss a day or a week.
What IS important is that you know WHY you're writing and so have some sort of direction. Ok, so getting into a daily discipline can help, for the discipline itself and potentially to improve.
But what is the point of writing random stuff continually? I mean a bit from time to time is fun, but that often happens in the comments anyway. The reason @basilesamel set this up was so people - like him, leading by example - could write a book by writing a little a day.
So, try and find a topic that you are passionate about and so which gives you consistent motivation and inspiration for your writing.
My problem is often like one point you made, too much to write about. But I just sit back and remember my goals and pick one of them to continue on that day. And if I am not inspired at all, I don't write at all.
Simple as that. As the wonderful @lucjah kindly mentioned, check out my series on this: https://200wordsaday.com/words/writing-for-your-goals-not-your-streak-bringing-it-all-together-77705c59d6ba6c7ee