Differences between Worry and Fear?

Hello Team,
I have been in scholars for 6 months and have lately been really great with my thought downloads and my models both intentional and unintentional. The feeling in my unintentional models that keeps coming up is Fear/anxiety which also equal “worry” to me. I understand that “worry” is an indulgent feeling and Fear/Anxiety is what fuels my buffering. ugh.
Can you explain the main differences between them?
Also, when I do my intentional model on the same circumstance as the unintentional model my feeling is ‘hopeful’. These feelings in my models come up almost every day on a myriad of circumstances!