Well, testosterone gives me a very nice, smooth, clean motivation and energy. But that's only when I run Test alone, and at a decent dose. When I run D-bol, T-bol, or Tren along with Test, I tend to feel lethargic. But that's just ME. Perhaps I've run them at too high a dosage (50mg D-bol,80mg T-bol, 100mg Tren daily, not all at once) It varies from person to person. Whatever I'm running it tends to make me irritable, especially Tren, I get angry over the smallest things. When i work out that attitude really helps me out. I take my anger out on the weights like crazy. Test is is your best shot IF you're going to run a first cycle, just to see how you react and if you like it. 500mg-750mg of Test a week is good for a first cycle.
Tell us your stats. Age, height, weight, how long you've been training, etc.