If you're going to run it then I may as well throw my 2 cents in.
At 17 you are not fully developed so you are not risking 2 or 3 months of shutdown. You are risking permanent HPTA axis damage. If you are not seeing results it is simple, eat more. If you decide to run it despite all of our info, just run the test. I DO NOT RECCOMEND THAT AT ALL!!! Just saying, don't touch the deca. I'll bet money you still have nipple rocks, and deca would not mix well. Stay natty for now, train hard. Eat big. Sleep more.