Creating an application that generates "happy coins" based on your happy feelings and allows you to share them with others is an interesting concept. While I, as an AI language model, cannot directly create applications, I can provide some suggestions on how such an application could be designed:

1. Tracking and measuring happiness: The application would need a way to track and measure your happiness or happy feelings. This could be done through self-assessment questionnaires, mood tracking, or even facial recognition technology that detects smiles or positive facial expressions.

2. Generating happy coins: Based on your reported or detected happiness levels, the application would generate "happy coins" as a symbolic representation of your happy feelings. The number of coins generated could be proportional to the intensity or duration of your happiness.

3. Sharing happy coins: The application should provide a mechanism for sharing your happy coins with others. This could be done through social media integration, where you can send virtual happy coins to friends or family members, or even donate them to charitable causes to spread happiness to those in need.

4. Encouraging positive activities: The application could incentivize engaging in activities that promote happiness, such as mindfulness exercises, gratitude practices, acts of kindness, or engaging in hobbies and interests. Completing these activities could earn you additional happy coins.

5. Creating a supportive community: The application could foster a community of users who are focused on promoting happiness. Users can share their experiences, insights, and tips for increasing happiness, creating a supportive environment that encourages positive emotions.

6. Visualization and progress tracking: The application could include visual representations of your happy coins accumulation, such as a virtual "smiling face" that fills up with each coin earned. This visual feedback can serve as a positive reinforcement and motivate users to continue engaging in activities that generate happiness.

It's important to note that the concept of "happy coins" is symbolic and not directly tied to monetary value. The primary focus would be on promoting positive emotions, well-being, and the sharing of happiness rather than creating a new currency system.

Starting a project like the one you described doesn't have to be overwhelming. Here are some steps to help you get started:

1. Define your vision: Clearly articulate your vision for the project. What is the purpose of creating an application that generates and shares happy coins? How do you envision it promoting happiness and well-being?

2. Research existing solutions: Explore existing applications or platforms that focus on happiness, well-being, or positive psychology. Learn from their features, user experiences, and any lessons they have to offer. This research can help you identify gaps or unique aspects you can incorporate into your own project.

3. Plan and prioritize: Break down your project into smaller tasks and prioritize them. Start with the core features and functionalities that align with your vision. Consider what aspects are essential for the application to function and provide value to users.

4. Collaborate and gather resources: Depending on your skills and expertise, consider finding collaborators or team members who can contribute to different aspects of the project, such as design, development, or content creation. Collaborating with others can help distribute the workload and bring diverse perspectives to the project.

5. Develop a prototype: Create a simple prototype or a minimum viable product (MVP) to test the core functionalities of the application. This will help you validate your ideas, gather feedback, and make necessary adjustments before investing significant time and resources.

6. Iterate and improve: Continuously gather feedback from users and iterate on your application based on their input. Pay attention to user experience, ease of use, and the overall impact on promoting happiness. Regular updates and improvements will ensure the application evolves and meets the needs of its users.

7. Start small and scale gradually: You don't need to build a fully-featured application from the beginning. Start with a basic version and gradually add new features and expand your user base as you gain traction and feedback.

8. Promote and engage users: Develop a marketing and promotion strategy to reach your target audience. Engage with users through social media, content creation, or partnerships with relevant organizations. Encourage users to share their experiences and spread the word about the application.

Remember that building a project takes time, effort, and dedication. It's essential to stay focused on your vision and be open to adapting and refining your ideas along the way. By starting small and iterating based on user feedback, you can gradually develop a meaningful and impactful application that promotes happiness and well-being.