Thanks for the post, bichngoc.
I hope you don't mind if I test out some sentiment analysis on your post. This is an experimental bot running on a small % of posts, and if reaction is positive I'll increase that ratio and add features.
Your post had an average negative sentiment of 0.059 and an average positive sentiment of 0.185
The most positive sentence in your post had a positivity score of 0.597:
"Remember, it's your best friend, not you."
The most negative sentence in your post had a negativity score of 0.318:
"Do not think of traveling as a waste."