its a 10 gallon lightly planted freshwater tank.
start off with a easy fish to keep alive and work your way up to harder ones
anubias, and other common ones
you have more tanks in your house than me and you half my age
when I was little I loved going to fairs and winning goldfish from the games, and since then I started to get into tropical fish and thats how I got into cichlids.
When you see signs of stress in your fish, you can then take steps to identify the source of that stress and then to resolve it before it becomes a major issue.
If you're looking for a unique way to stock your new tank, give freshwater shrimp a try.
If your fish is suffering, you may want to consider euthanasia as an option to humanely end his pain.