14” blonde virgin hair

I have virgin, fine, blonde or “dirty blonde”, thick, straight hair. It has never been dyed and have very rarely used heat in my hair. I wash my hair about 3 times per week and trim every 4-5 months. There may be split ends. The only products I use in my hair are shampoo, conditioner, and hairspray maybe once a week. I do not smoke, drink alcohol or use any other drugs.