I can't play as my character

I have made my game character and a game mode i have made the blueprint for my character.
I have selected my game mode in the Project and world settings and selected my character but it doesn’t seem to work when i press play im just flying around i don’t know what i did wrong, im sure its just a small mistake that im misssing.

Without screenshots this isn’t easy to solve.

Blind suggestions:

Is the player character placed in the level?

Is the player character set to be possessed?