I tried 5 Hour Energy once.
There was a bit of an initial boost but then I felt terrible very quickly. Have never been tempted to try it again since, the experience was that terrible.
Eat right, workout, get decent sleep. No tiny bottle can compete with that.
2x BLX 6.1 Pro Staff 95: 12 oz., 8 pts. HL, SW 325
VS Touch Black/Focus Hex 1.23 @ 58/54