How do I say I own myself in Latin?

1. How do you say own in Latin?
2. How do you say yourself in Latin?
3. What is unique in Latin?

How do you say own in Latin?

(Ego) me ipsum/-am possideo.

How do you say yourself in Latin?

“you” as singular and object (non-subject) is “te”. “yourself”, as “you proper” is “te ipsum”.

What is unique in Latin?

unique (adj.)

c. 1600, "single, solitary," from French unique (16c.), from Latin unicus "only, single, sole, alone of its kind," from unus "one" (from PIE root *oi-no- "one, unique").