Welcome aboard. You'll need to be in terrific shape to go USMC so start working on it now. Yes, even as a pilot. I'm sure you've heard the expression "Every Marine is a rifleman". Well, every Marine officer is a rifle platoon leader. Even pilots.
Hurricane12 is a female USNA grad who went USMC and I'm pretty sure has a pilot slot lined up, if not already at flight school. Keep an eye out for posts from her.