Do I need to seek treatment?

I have had haemorrhoids for several years which seems a bit strange as I'm only 21. I have periodically tried to treat however I've not seen much improvement and have to admit to never completing the full course. I do have problems with my bowel movements and I'm often constipated, I am open to suggestions about ways in which to become more regular in a way that doesn't add lots of calories to my diet. Has anyone tried acai berry tablets for this?

They haven't been too uncomfortable until recently, I think one of them has become thrombosed? It looks sort of bruised and is quite painful. I was just wondering if I can still treatment this at home with suppositories and cream? Also does anyone have any recommendations for brands which work well.

I've been too embarrassed to seek professional help and I'm really hoping to avoid this.

Many thanks!