Did you ever travel some place because you wanted to be in better weather? Do you think weather changes how you feel? What do you pack when you travel?
Non-count nouns and many indefinite pronouns take WAS, not WERE.
Some are crazy. Fruit is non-count, but vegetables are plural.
Words like everybody, my class, and my family are 1 group, not plural words, and they use WAS, not WERE.
(If it won't make you sad today) Write about a time that you were happy. When were you happy?
(Can you use a time marker* when you write about it?)(*USA English says "on the weekend." British English says "at the weekend.")