19M - Hair Density problem due to Tellogen Affluem

I've had very dense hair for last 18 years of my life. this year im turning 19 this june. n In Oct 2025 I had longest hair that i ever had. It use to reach my eyes.

Then suddenly from Novemeber 2025 My hair denisty started decrease all over scalp but hairline is still intact. I lost 4kgs from November 2025 to January 2026, I use to sleep at 2AM, n wake up at 11AM, I use to get no Sunlight, Also walked n ran a lot even while being on unintentional calorie defeciet

Today is Jun 24. My hair still hasn't regained its original denisty? I'm gained 3kgs back. n I fixed my sleep schedule but it got lil bad from past few weeks. I daily spend 2 hrs out in Sunlight. and also improved protein in my diet.

I'm thinking of getting a full bloodtest to supplement any deficiens.

Any suggestions? How I can go back to orignal denisty I had