Advice please… 11mm endometrial polyp 15mm lining

Hi,

I had an ultrasound 8 months ago that shown an 11mm polyp and 15mm endometrial lining. (I’m pre-menstrual)
The ultrasound was due to heavy bleeding, bleeding in between periods and after intercorse, pain etc. Symptoms are getting worse.

I’ve been told it’s a 6 month wait to remove the polyp and do a biopsy. Is this right? I’ve already waited 8 months just to see a gynaecologist.

I’m just worried that it could be something sinister and I’m having to wait over a year all together to be checked.