Job Titles

Good morning

I have been in the same job in a small company for the last 14years, my job title is 'Personnel Officer' which I believe is very dated.  I am just wondering what the difference between different job titles might be.

Would someone like to advise me what the difference between a HR Generalist, HR Officer and HR Advisor may be.  I have looked at some JD's but they seem (to me to be very similar) and I do not want to change my title to something that is above what I do.

Thank you

Jenine