The original version →    • 【meiyo】なにやってもうまくいかない【MV】  
When I heard that the basis of Waluigi's character is self-pity, I was very excited, so I drew this.
Thankfully, meiyo has released the stem data, so I decided to use a slightly rearranged version of it as the sound source!
The amount of information in the stem data is amazing!
The production period is about 100 days.

If you are interested in knowing the English lyrics to this song, this video may be helpful.↓
Nothing's Working Out (English Cover)【Will Stetson】「なにやってもうまくいかない」
   • Nothing's Working Out (English Cover)...  

（Translated by DeepL & Google.）