Ser v. Estar
Remembering, or trying to remember, high school Spanish class our teacher had a great way of differentiating these that I loved! But at this point, like almost a decade later, I am struggling to determine which to use.
We had flash cards that showed us the different words, and there was a song that helped us determine when to use Ser and when to use Estar.
I know (I think) that estar is for location and maybe feelings, like estoy cansada. Ser is for occupation..?
glad to help! :) I used to have a lot of problems as well, but that video really helped me! You can also practice using this:
Repetition always works best for me!