How do you say

I bought a new car last week, and it’s so convenient to drive to work every day.

..in Chinese?

我上周买了一辆新车,每天开车上下班感觉很方便。

wǒ shàng zhōu mǎi le yī liàng xīn chē , měi tiān kāi chē shàng xià bān gǎn jué hěn fāng biàn 。

How do you say "He stuck with it, working out three times a week for three months, and by the end he had significantly improved his basketball skills." in Chinese?