For this case, the blank space must be filled according to the idea of the sentence.
No me __________nada. Tengo todo.
Do not __________ me. I have everything.
This prayer wants to convey that the subject has everything, that is, that he does not need anything.
Then, the blank space can be filled with the word "missing" (falta).
Answer:
No me falta nada. Tengo todo.
I'm not missing anything. I have everything.
