十开头的年纪我害怕失去你
[shí kāi tóu de nián jì wŏ hài pà shī qù nĭ]
Refers to the teens or early twenties when one starts seriously valuing and fearing loss of loved ones, friendship, opportunities, etc. It shows emotional vulnerability and significant attachment toward what's being described as potentially lost - emphasizing anxiety related to changes in relationships during youth.