Stop carrying the weight of the world on your shoulders.
别太操心了,没有你地球照样转。 (carry the weight of the world on one’s shoulders:自以为重任在肩。)
You'd have a better chance of catching the train if you took a bus to the station instead of walking.
如果你不是步行而是乘公共汽车的话,那你就比较有可能赶上火车。