If you don't like coffee, you might want to try 5 1/2 hour energy. It's a blend of B-vitamins, amino acids, essential nutrients, has zero sugar, zero herbal stimulants (and only 4 calories). Plus, you won't crash as with other "energy" drinks like Red Bull. It sounds like you might be fine with a 1/2 a bottle or a bit less (they are small). They don't taste the best, but they really work!