effort可数不可数：my long-term effort 还是 efforts?

1。在表示“努力,尽力”时,effort是不可数名词,I decided to make one more effort。我决定再作一次努力。2。表示努力的成果,成就时；它是可数名词His recent novel is a fine literary effort。他新近的小说是一本文学佳作。 再问： I must admit this job interview means my long-term effort is likely to be successful。是对的吗？