I don't know how coffee and black tea makes me sleepy but as soon as I drink even one sip of red bull i am *locked* the fuck in

You should probably start making your own drinks from now on.

/jk

Yes yes follow the dark path (it's probably the sugar and taurine)

It's how energy drinks work, sugar for the instant energy and the caffeine and taurine for the slow burn (don't remember which one is the longer acting one)

It will increase your uric acid. It's not fun if you can't walk due to gout attacks.

This could be a a sign of low or high blood pressure(don't remember which)
Also IIRC this could also be caused by ADHD
There are multiple reasons that could cause this, so it wouldn't hurt asking a doctor.

Note: This is not a "I know" opinion, this is a "I've heard" opinion.

Hot drinks will make you sleepy and have a fast impact on your bodily functions (tea more on the number 1 and coffee more number 2) the caffeine effect comes much later to full force (about 45 min).

Some people do experience the effect quite early on. However it is generally not a good idea to drink coffee right before driving for an hour, to stay awake. The caffeine will kick in after you arrive and you probably needed a toilet break...