Machine Kit Off Ebay

Hey guys, and gals, I just ordered a machine off of ebay it is a 3 machine kit, bunch of ink needles and all i need to get started i am going to get an apprenticeship soon, thats not what i want to hear. is there any advice in detail you can give me on becoming good i am an artist and wanted to be a tattoo artist since i was a youngin, any advice is greatly appreciated -An aspiring artist -Bobby p.s I AM NOT TATTOOING ANY REAL SKIN, I AM TATTOOING MELONS AND FAKE SKIN.