Well to me it seems like the answer is Jealousy
Answer:
A ready and creative mind
Explanation:
The Origin Series
The Fault in our Stars
Dress Coded
Crying Laughing
Drums, Girls, and Dangerous Pie
It could be
obsession. As obsession is defined as the reoccurring mental thought or idea of
something. This obsession has caught you up or to overthink. For instance in a
situation that has caught you up, you engross yourself with it. Overthinking like
obsession is a mental act or a cognitive resonance which is still different
from behavior or compulsion, as the word for it.