All bullies are the same - they gain strength from your weakness. They probe you to figure out your sensitive spots, then they attack. But if you stand tall and courageous, they will not win.
Dig deep inside of yourself to find your purpose.
Your purpose will give you courage. For example, if your purpose is to finish a certain task, remind yourself of that whenever someone or something stands in your way. Stand your ground and don’t show weakness - you can get the job done.