Ser vs Estar

Both mean "to be", but how do you know when to use which?...

SER
Description
Origin
Nationality
Time
Events

VS

Estar
Health
Emotion
Location
Present Condition
Present Progressive

Description: refers to physical characteristics -

Ella es una mujer.
La tienda es roja.

Origin: refers to where somebody is from -

Soy de Iraq.
Ellos son de la otra escuela.

Nationality: similar to origin, what natinality somebody is -

Soy americano.
Ella es latinamericana.

Time: refers to what time it is or the time of an event -

Son las siete.
La fiesta es a las once.

Events: refers to where an event is taking place -

La fiesta es en la cocina
*Note: ser is only for event locations

Health: refers to somebody's health -

Ella está enferma.
Estoy cansado hoy.

Emotion: refers to where somebody's emotions-

Estoy triste
Ellos están enojados con nosotros.

Location: refers to somebody's/something's location -

Estoy en la casa.
Nosotros estamos cerca de la escuela.

Present Condition: refers to the condition of an object -

La puerta está rota.
La pantalla está fracturada.

Present Progressive: estar + present participle -

Estoy corriendo ahora.
Nosotros estamos comprando el regalo