This depends on your Iman and belief in Allah! You should try your level best to think positive if Allah and to depend on Him in everything you do.

sheikh, my question is how do I get my mind to fully be at tawwakul in every situation. I often find myself wondering in the negatives about my greatest fears coming true- depending on what’s happening in my life at that time. I would love to let my mind be at ease and leave everything in Allah’s hands,how do I achieve this?