Hi with this simple statement i can't tell what might be your problem, but onething some diaturbance or feeling anxious of particular might be causing insomnia. Though in this forum we can't discuss anything, but i could say that some issue of personal or professional life is bothering you. Please visit psychologist for analysis and guidance. Stay positive take care
Next Steps
you can visit psychologist through online or offline based on your comfortable.
Health Tips
try to have social network and try to share your emotions with whom ever you feel comfortable.