Welcome
stevensairbrush
Welcome to the board, I am sure you will get the info you need.
Probably the best place to ask this question is the Studio Building and Display forum in the special forum section near the Classified ads.
I have found that all rooms, particularly small rooms, need bass trapping.
There are a LOT of half cocked misinformation out there that sounds plausible, but in fact are a waste of time.
The most common, easy to build, most doable by klutzes like us is the broad band and Bass trap panels made from Mineral Wool or Compressed Fiberglass. Bales of "Home Depot" type home insulation can work in certain circumstances but do a search on Bass Panels or Bass absorbers, you will get good read.
The room is too small to incorporate diffusers, so forget about that. Absorption is more your friend.
There is a site dedicated to any and all things Home Studio building:
www.johnlsayers.com
It can be overwhelming at first, but it is a wealth of good info.