toujours dans mon propre petit monde means 'always in my own small word' in English.
"self-esteem"
To translate "clean" in French, you would use the word "propre." However, the placement of "propre" in a sentence depends on the context. When "propre" comes after the noun, it typically means "own." If it comes before the noun, it usually means "clean."
Lasseube-Propre's population is 338.
The area of Lasseube-Propre is 14.57 square kilometers.
Le propre de l'homme was created in 1960.
He was essentially a good-tempered man and had not a trace of amour-propre in his nature.-The Adventure of Living
"son propre"
yes
À toi-même sois fidèle.
Plus que ma [propre] vie means "More than my [own] life" in French.
owning = posséder