Why is my goldfish miserable

My Goldfish Samson (previously Sam, but had to change because people thought i had named it after myself! i actually had 4 other fish Frodo, Merry, Pippin & Gollom) Anyway my fish just looks so unhappy, i feed it i clean it out but it just looks depressed. I have thought about getting another fish but he is my 12th fish, as i haven't been very successful with fish in the past.

I first got 5 fish (Goldilocks, Knox, spud, Spock & house - TV was on and house was what was on) and within 48hours they had all died, i wasn't sure why? I even went to get the water checked at the pet store, i did the leave them in the bag thing for a while before you put them in but one after the other they just died! The lady at the pet store said i must just had the weaker fish!

I wasn't going to get any more but i went to the fair and won 2 fish (Fifi & Jemimah) again within 48 hours i was back down to zero fish. I was determined to have a fish and to keep it alive for at least longer than a week. So i went a got the last lot and yet again one by one they died off, first it was Merry (he wasn't very merry) then Gollom, Frodo and Pippin. But Sam survived and has now lived well over a year now (very proud of myself) I'm just getting very worried what if he is on his last legs, or fins??

Patrick in my school bag a few years ago.

I think if Samson was to pass on, then i will just stick to cats and dogs they seem to survive much better around me. My last cat Patrick is amazing (she currently lives with mum and dad - didn't want to move her from her comfort zone) and yes Patrick is a girl, it was hard enough explaining this to the vet i booked her in for to be spayed. Her full name is Patrick Lucifer (on actual chip) she is like the devils cat but we all love her to bits. Although you should never lay down on the floor when she is around she will attack! Over the years she has piled a few pounds on because she actually goes next door for a second breakfast, she is like a furry football.

I remember once i was trying to eat my dinner and Patrick came along and put her paw in my mash, cheeky little thing. There was another time i was putting hair removal cream on my legs and yet again the paw went in, i had to chase her round the house so i could get the cream off her paw before she ate it!