Lovebird obsessed with small spaces

My lovebird is obsessed with going into my drawers and a small space beside the stereo. She is very aggressive when I try to taker her out. I have tried not letting her in these spaces, but it seems to have made it worse. She is three years old and laid 5 eggs last spring and two sets of 5 eggs this year but that was five months ago. I gave her nest box back to her but she has no interest. Help, my sweet birdie is turning into a monster.