I still think coffee is great for short sprints / crunch time, but I don't think I'll go back to ongoing high levels of use.
Friendly advice: drop the sugar first. It's really really hard, I know...
Caffeine is most likely to mess up your mood when you also consume sugar, or alcohol. That's why green tea for example works much better: it's disgusting to oversweeten it, to mix it with sweets, or to have it immediately before or after a pint or two ;)
Coffee otoh can even be delicious in combo with fries, ice-cream and beer. Hence I only have it in the morning when I'm not tempted to mix it in such disastrous combinations.
(Would have posted this last night but I hit the rate limiter, heh.)
I have always felt like caffeine tapped into some kind of energy reserve which could be depleted. In short bursts caffeine works great but you have to take the time to recharge.
I always come back from vacation feeling much more energetic and motivated. I only really drink coffee or consume large amounts of caffeine at work. There are many benefits to time off but I have always suspected one of them was getting off caffeine for a stretch.
What source motivated to start using ibuprofen? Aren't you worried about liver and kidney damage on long term. (And the more obviously annoying side effect to becoming habituated enough to a good OTC available antiinflammatory pill that is otherwise great for headaches and works wonders on random joint aches during hikes too, but will stop working for you in these cases :) ?...)
Just genuinely curious about why you ended up with such a seemingly suboptimal combo of substances.
How do you measure results of your self-medication? How do you identify substances to medicate yourself with?
Have you spoken with a professional about this?