my ears twitched when you said 'i dont know what im doing' with the acrylic, be confident in the fact that none of us do when we havent practiced something a lot until it almost becomes habit,and even then perhaps not.
If theres a partciular thing you think you CAN draw or feel like you know where to go step by step such as people for example,consider this "how did i start to draw people?" landscapes,people,vehicles,scenes,places,monsters work the same as trying new mediums attack it with all your experimental force and pay attention to what happens. If you're having fun,you're doing it right :3
go get em,tiger.
Never Attempt the Possible;attempt the impossible and even if you fail,you'll fall among the stars.