该句使用 'the reason... is that...' 结构清晰地阐述了因果逻辑，'overthinking' 精准表达了过度心理负担的状态。
Sometimes, the reason you feel so exhausted is that you are overthinking. People with overly complex minds live hard lives because they are too easily swayed by others' emotions. They constantly dwell on trivial matters, ultimately trapping themselves in a tangled web of emotions, unable to move. When the heart is simple, the world becomes simple, and happiness is given room to grow.
I believe that we are not happy all the time. Life has never been easy for me. But I always hold the belief that no matter how much hurt I may receive, I must still love.
有时候，你感到疲惫不堪，往往是因为想得太多。心思过重的人活得格外辛苦，因为他们太容易被他人的情绪所左右。他们总是胡思乱想，最终被困在一团乱麻般的情绪中，动弹不得。心若简单，世界便简单，幸福才会悄然生长。
我想，我们并不是时刻都快乐。生活对我而言从来都不轻松。但我始终相信，无论遭受怎样的伤害，都要去爱。
"If I cannot become profound right now, then I will choose to be lighthearted."
"Although destiny cannot be changed, we can change our attitude towards it."
"When the road is blocked, choose to detour; when the heart is heavy, choose to let go."
"Life is short; there is no need for self-pity."
"Do not let a bad day make you think you have a bad life"