not able to get back on one's feet
Estar en una situación de dificultad o problema constante, sin poder recuperarse o mejorar.
Después de perder el trabajo, no he podido levantar cabeza.
Con tantas deudas, la familia no levanta cabeza.
"Not Heads Up." "No levantar cabeza" means "not getting back on one's feet," correlating to being down or in a difficult situation, just like when you can't lift your head.