Hi Carole welcome to the forums as you have found there are lots and lots of other threads with similar questions so worth a read for advice and guidance

Based on what you have said its impossible to give you are real practical advice or guidance as too few details. My one guess is that your title of HR Officer may not match the job you have been doing. Its rare for a HR Officer to be an entry level role and (no disrespect intended) it could well be that there is a mismatch between recruiters expectations, your skills and the roles you are applying for. Its that I would be looking at possibly. (whilst there are no hard and fast "rules" in many organisations if they use the term HRO - many now don't - it would perhaps be the third step in a HR structure not the first)