I called my ex girl and left her a voicemail what should i do?????

i called my ex girlfriend we have been broken up for 5 months and i left her a voicemail but i called private what should i do text her or call her tomar to ask her what she wanna do i just wonder what should i do i need advice cause i really want her back what should i do tomar txt her or call her or something and the point is that i be nervous..