Hi!
We moved to Gladstone nearly 4 years ago now and it took quite a long time to transition.
As others have said the limited trading hours are anoying but they are slowly getting better. There is an IGA in Sun Valley that is open on Sundays as well as a few SPARs around which are like small convenience stores.
I would recomend the Gladstone Communities for Children as a great place to find kid friendly things to do. They have a book that they give out yearly which has all the playgroups, schools, sporting activities, mothers groups etc for the area. I found it an awesome point to start as I could just flick through, find something that was of interest , call them and give it a try

The contact details are on
this websteI take my 3 year old to a great playgroup at St Stephens Lutheran College which meet on a Wednesday morning 9-11 am and is super casual. Just bring a snack for your child, a hat for outdoor play and a $2 donation. I would steer clear of the womens health contre playgroup as we didn't have a great experience there..
We also go to story time at the Gladstone city library on Wednesdays. It starts at 11 so we either leave playgroup a bit early or alternate weeks. The library has a great kids area with toys, couches and computors. The have a great selection of books as well as kids dvd's and cd's.
Library websiteSome great parks for kids are the Marina, next to McDonalds, in front of the beach at Barney point and there is a playcentre call the Kuby House
linkfor when it is raining or we just go to Bunnings indoor kids area for free

The Gladstone Aquatic centre is also great for little kids and they do swimming lessons there as well.
The Information centre is at the Marina and that is where we went when we first moved here to get a local map. The staff were really helpful in showing us where things were and directing us to good spots.
Gladstone Regional CouncilIf you need a hand just PM and I will be more than happy to help, I know that feeling of isolation and don't like it one bit!