Hello Friend, thanks for reaching out here for help. From your brief, it looks like your are loosing interest on everything. In such scenario, possibilty is, there only one key issue or root cause that is creates multiple others problems. If you can isolated that root causes and work on the resolution, you can bring back your own balance. May be you need to take a guidance from a counseling session to figure out the reason and possible solutions.
Next Steps
Consult any psychology counselor locally or you can consult me online.