Well aside from trading and mining there are other ways to earn bitcoin by joining bounty campaigns but since you are a newbie there were less opportunity for you.In service section you can find some jobs there,you can offer your work in exchange for bitcoin or some other altcoins if you have special skills like translation,web designing or accelerate transactions.If you have facebook,twitter,telegram or reddit accounts you can join their campaign too because this campaigns doesn't need  higher ranks..while doing that try to increase your rank as possible as you can inorder for to join huge bitcoins project.Having high ranks have alot of opportunities in this bitcoin community so do have alot of patience and knowledge as well..thats all you need to have for now.