Según sea necesario is the best way to say "take as you need" in Spanish.
"I don't take ..." is "no tomo ..." in spanish.
tomalo
rentrez
Answer: Tomar
Tómala
llévame contigo
Yo Tomo
Me retracto
Vamos a tomar. Or...tomaremos.
llévame a casa
Quisiera sacarle