Hello Friend, thank you for reaching out here for help. The answer for your question i.e what to do next is available from your problem statement itself. Focus on the things you like the most. This will help you get committed and improve your motivation level . Similarly create new friends, hobbies, interests etc. This will remove your loneliness. However all these are easier to say, but how to do?. You may take the guidance of a psychology counselor to assist you in deciding your next steps.
.
Next Steps
Go for a counseling near your place or you can reach me for online counseling