Welcome to AA!! First things first, do you have a good liquid test such as the API fw
master test kit? A bottle of Prime or Amquel Plus? Your tank is not cycled and these items will be mandatory in order to see fish safely through a fish-in cycle. Your fish's odd behavior is likely due to high toxin levels.
Unfortunately, I will have to be the bearer of bad news here. You have some very serious incompatibility and overstocking issues. Goldfish are coldwater fish. The rest of your fish are tropical. Depending on the type of goldfish (fancy or singletail), your tank is fully stocked with three fancies and no other fish. If they are singletail goldfish such as commons, comets or shubunkins, they honestly are better suited to a pond as they have even greater water requirements. You honestly need to decide first if you want a tropical or coldwater tank and return the fish that are not appropriate.
Your likely to also have further issues with compatibility and appropriate tank size if the pleco is a common (they grow up to 2ft), with the CAE
and the bala. Ill let others further advise on possible issues with these guys and school/group issues with the single molly and the glass fish. You can also check the Aqadvisor.com site for further info.
I will post some articles below with further information on fish-in cycling, setting up a fw
tank and goldfish for you to read. Please ask any questions!
I just learned about cycling but I already have fish. What now?! - Aquarium Advice
AqAdvisor - Intelligent Freshwater Tropical Fish Aquarium Stocking Calculator and Aquarium Tank/Filter Advisor