Feeling anxious every day, losing interest in things, feeling weak or sleepy, and becoming afraid to start tasks can be signs of anxiety, depression, prolonged stress, or another underlying issue. It is not possible to determine the exact cause from these symptoms alone.
The sleepiness and weakness after eating can also have physical causes, so it would be useful not to assume that everything is psychological.
Next Steps
I would recommend:
Consulting a psychologist for a mental-health assessment.
Seeing a physician if the weakness and excessive sleepiness are persistent, particularly to rule out nutritional, metabolic, hormonal, or other medical causes.
If the assessment indicates significant depression or anxiety, a psychiatrist can also be consulted.
Health Tips
For now, don't pressure yourself to complete everything at once. Choose one small task, work on it for 10–15 minutes, and gradually increase your activity. Maintain regular meals, sleep, and some daily physical activity.
Most importantly, loss of interest and fear of doing normal activities for a prolonged period deserve professional attention. With appropriate assessment and treatment, these symptoms can improve.