If this is your 1st time making your own gear, Test Cyp is not an easy compound for a beginner.
I will assume you have already added oil, BB, BA to the compound. The problem you have at the moment is the compound crashed or "turns into something like oatmeal". This happens when the compound lumps up and separates from the oil. So is your Cyp no good? Nope, you just need to reheat and add more oil. This will lower the overall mg/ml. If u were trying to make a 250mg/ml solution and it turned into oatmeal, your numbers may be off (could be 255mg/ml instead). I suggest making a 200mg/ml solution, which is pretty much crash free at that dose. At 250mg/ml and above you will have crashing problems. If u are uncertain how to uncrash your gear, drop me a pm.
I tried a few different things and the cypionate powder won't melt for some reason or turns to something that looks like oat meal. Help!!!