Online acts could make one extremely lonely since your partners are "ghosts", even if you video chat.
It is necessary therefore that you belong to a life social group, working online but inhabiting a common office/residence. It is necessary to drive away the boredom associated with solo online entrepreneur.

Never underate the necessity to communicate with your God in PRAYER as often as necessary!!

Wow?? , Why abandon your PhD programme folk? Better you dust your files and complete the damn program.