Answer:
1. Hola, me llamo *your name* (Hi, my name is *your name*)
2. Me cepillo los dientes (I brush my teeth)
3. Antes de cepillarme los dientes, me baño (Before I brush my teeth, I shower)
4. Después de cepillarme los dientes, me visto (After I brush my teeth, I get dressed)
The correct pronoun is "El" because he is a boy and he is your cousin so you have to use "El"
