Hey everyone so i recently found out my bearded dragon is actually a type of dragon called Lawsons bearded dragon. They only get up to around 12 in which explains Ollie's growth rate.If your beardy is not growing that much around the the age of 1 year old then look into him/her being a Lawson dragon. This type of dragon is easy to get and not know about,make sure you ask the breeder or place you got him/her first and if they don't know try to find things about your beardy that match the types description. Anyway that's all for now PM me if you have anything to ask or tell me, thanks! 
