I'm sorry to hear that you're feeling this way. It sounds like you might be experiencing a combination of depression, low self-esteem, and unrequited love, which can be very challenging. It's important to remember that these feelings are temporary and there are ways to work through them. Here are some steps you can take to start feeling better:

1. Seek professional help: Consider talking to a therapist or counselor who can help you work through your feelings and develop coping strategies. They can provide you with tools and techniques to help manage your negative emotions and work towards a more positive outlook on life.

2. Focus on self-care: Make sure you are taking care of yourself physically, emotionally, and mentally. This can include getting enough sleep, eating well, exercising regularly, and engaging in activities that bring you joy and relaxation.

3. Shift your focus: Try to redirect your attention away from the woman who doesn't reciprocate your feelings and towards activities and relationships that bring you fulfillment and joy. It's important to remember that your worth is not defined by one person's opinion of you.

4. Build a support system: Reach out to friends and family members who can offer you support and companionship during this difficult time. Talking to someone you trust can help you feel less isolated and more connected.

5. Set small, achievable goals: Break down your larger goals into smaller, more manageable steps. Celebrate your accomplishments, no matter how small, as they will help you build confidence and motivation.

Remember, it's okay to ask for help and take time to work on yourself. Healing takes time, but with the right support and resources, you can overcome these challenges and start to feel better.