Everyone needs to care about their own needs and well-being to some extent. However, if you only think about yourself and completely ignore the feelings and needs of others, it may cause some problems. 1. **Damaged relationships**: Relationships are often based on reciprocity and care. Thinking only about yourself may cause tension or even break up relationships. 2. **Long-term effects**: The support and help you get in interpersonal relationships are usually mutual. If you only think about yourself, you may miss out on support from others. 3. **Isolation**: Being too self-centered may cause you to be isolated from friends and family, affecting your social life. 4. **Morals and values**: Many cultures and moral systems emphasize the importance of empathy and cooperation. Being too selfish may conflict with these values. However, it is also necessary to set boundaries for yourself and pay attention to your own needs in time so that you are not overly consumed by others. The key is to find a balance so that your needs and the needs of others can coexist harmoniously.