Hi I'm A 13 Year Old Female Who Is Having

Hi I'm a 13 year old female who is having trouble sleeping at night I have an average number of 3-4 hours of sleep at night and I'm tired throughout the time I'm awake but when I try to sleep I just end up laying in bed awake I have told a my parents and they told me to cut off caffeine in my diet and I have for about 2 months now I only started drinking coffee because of being tired during the day I want to visit a Doctor and talk about this issue but I don't have medical insurance where I'm currently living