Tax deductions as a travel blogger

Right now, I’m self-employed and travel a fair bit for work, but I still have an apartment that I’m tied to. My dream is to ditch the apartment, hit the road full-time, and start a YouTube travel channel to share my adventures. I’ve heard that you can write off travel expenses if it’s part of your business, but I’m not sure how that works if I don’t have a permanent home base. My accountant says I might not be able to write off my travel expenses if I’m living on the road full-time, but that seems like it can’t be right. Is anyone else doing this? How do you handle taxes and write-offs as a full-time travel blogger?