Effect of caffeine

I was doing some readings for my other subject regarding GABA (an inhibitory neurotransmitter) when I came across some revealing information about caffeine.
People tend to say that caffeine makes you feel more awake and energetic, but honestly, I don't see that effect on me. Maybe because I take caffeine on a daily basis so it has become just a part of my daily diet.
But after I read this, it became clear to me what kind of effect caffeine might have on me.

You see, GABA is a neurotransmitter that basically calms down our nerve activity. People with anxiety disorders tend to have less GABA, so they get anxious and freaked out more easily. Taking up caffeine actually stops the release of GABA, so you can imagine what this would cause.
This would explain why I am sooo jumpy sometimes. Caffeine is stopping my GABA to work properly!

However, there is an issue of caffeine causing dehydration. I was trying to confirm if this was true, but websites such as MayoClinic and WebMD actually brushed the statement off as a myth. They claimed that caffeine can only become dehydrating if consumed in large quantity, about 5 to 7 cups of coffee per day.
In fact, I read about a study that also found no significant results regarding caffeine and dehydration. So I believe that it is not a problem to drink at least one mug of tea everyday, provided that I drink lots of water throughout the day.

So do I want to stop drinking caffeinated beverages or not?
No, but I want to reduce it. Though it might not be dehydrating, caffeine might make me feel more jittery and jumpy.. so maybe reducing it will be a good idea for me.

Cheers ;)