Yes, please start your travel blog! Your writing is sensational, and people will love your personality, honesty, and eloquence. Also, I can personally attest to the fact starting a blog can lead to unexpected opportunities. I hate to hear how unfairly you were treated at your last job. Employers are notorious for "laying off" workers who are not at fault to benefit the bottom line. In your case, it sounds like retaliation. Also, keep documentation of all communication you had with your boss. Not sure how employment laws work in Japan, but you may have a case for wrongful dismissal. In either case, thank you being vulnerable and honest about what you are going through. Keep betting on yourself.