Anxiety for laparoscopic procedure

Hi ladies, new to the group. Been TTC for about 4 years. All tests to date are fine and I ovulate like clockwork. SO is fine too. Had hysteroscopy and D&C to clean out lining in February and taking progesterone; still not pregnant. Scheduled for a laparoscopy on 1 June to check for endometriosis - anxiety is getting the better of me. I guess knowing either way is better than trying in vain.