How do you say

I plan to study hard after the new semester and try to win a scholarship.

..in Chinese?

开学后我要努力学习争取拿奖学金

kāi xué hòu wǒ yào nǔ lì xué xí zhēng qǔ ná jiǎng xué jīn

How do you say "I have taken up gardening recently and spend a lot of time in the garden each week planting new things." in Chinese?