How do you say

I’ve been learning to ride a bike and I’m going to buy a new one in a week.

..in Chinese?

最近我在学习骑自行车,打算一周后买一辆新的。

zuì jìn wǒ zài xué xí qí zì xíng chē , dǎ suàn yī zhōu hòu mǎi yī liàng xīn de 。

How do you say "I ordered a new sofa online, and it took two weeks to arrive." in Chinese?