I'm so glad you found the bag and took the time and trouble to return it.
我很高兴你发现了旅行袋而且不怕麻烦花时间将它送来。
A bad bush is better than the open field.
有胜于无。
I am sorry that you have a disagreement with your father. Personally, I think it is important to follow your interests and your abilities, and it sounds as though you have plenty of both of these already.