CHRONIC ENDOMETRIUM. Hysteroscopy again?

I'm trying for pregnancy since 8 years now, still no luck. currently undergoing treatmeant for IVF and my egg retrievel is completed and my embroyo transfer is getting delayed since 6 months now due bad endometrium texture i.e doctors said emdometrium texture is not good and its a poor endometrium. I'm getting good thickness when i use medicines, but there is no triple line formation to transfer an embroyo. i have gone 3 times hysteroscopy and 1 laproscopy. i have gone through plasma cells and dice panel test and i was detected with enterococcus faecalis bacteria in the biopsy report. i have taken treatment for 12 days doctor i.e tab linid 600 mg. Now i'm back to fertility treatment, i got my period naturally and it's day 2 of my cycle 6mm endometrium. Doctor want to go with hysteroscopy once again. I'm very concerned now. can some one suggest its good to go with hysteroscopy again?? i believe earlier stages before taking fertility treatment i used to have good layers of triple line. I