Is coffee addiction serious?

I'e abused coffee in the past as I'e felt like I had no choice or alternative. My tolerance for a little high now, and I'm a little addicted to it. I'e taken upward around 600 mg, and sometimes more but not very often (or much higher)

I'e quit before but it's just hard to carve away enough time or get into a situation where it is more practical and easy. I realized a lot of the fatigue was lack of proper nutrients or diet, but still something I struggle with and have worked hard labour job the past and felt like I had to consume high doses to make it through and as well I was so overwhelmed during those periods.

Is strong coffee verging on being a hard drug? I've heard and seen lot so other people do it, thus it felt like something sem-alright to indulge in, by got scared me, I have dark terrible circle sunder my eyes now from it lol.

I knew mid aged guys who did trades work and drank a lot or either very strong coffee and they seemed relatively okay as well. Like filling the filter all the way to the top.

I'm literally in love with coffee, it saves my all doom and gloom days and brightens up my mind. What's more, I've recently discovered Nespresso espresso pods and I find them really useful. Mostly because you can choose from a great variety of nespresso capsules offered on the market. What attracts me the most is the thing that they make capsules even for third party roasters. You just need to be careful while choosing them. I'd advise to use some reviews and guides. As for me, this guide is the most informative and detailed. Moreover, there are provided prices for all capsules, which makes the choice even easier.

I work in a construction organization and I am often tasked with project management, as a result of which I work a lot, especially at night. In the morning I do all the most important things, and in the late afternoon I do the documentation and send reports to my customers, and only thanks to coffee I can stay awake. I haven't slept much in the last 2 weeks and I feel that my body is very weak, but I don't have much choice, and a black strong coffee helps me stay awake. I don't know how long I can hold out like this, but I bought myself the best milk frother to make cappuccino and reduce the dose of caffeine in my body. I feel like I'm about to fall!