I think I’m going too far..

Hii,

I’m a 17F that’s currently really struggling with food. I want my period back, so badly. And I’ve tried to do it ‘the healthy way’. Increasing my calories to 2500 and then building up. But the last 28 days have been terrible, the first 2 weeks I ate 3275 calories daily. The week after that it sprung up to 4300 calories a day. And this week..I’m scared to even say but I think around 6k-7k every day. I’m noticing severe weight gain, I had a BMI of 18. So not ‘underweight’ . How do I stop this extreme hunger? Or am I just classifying it as hunger to let myself go…please someone help.