Please, help me to learn computer science, data science and finance quickly. I graduated with a degree in History, and I realized that this has no worth at all. I am working in a call center, live in a 3rd world, and earns a low income--I don't have such skills aside from communication skills only.

I don't know what to do with my shitty useless degree, and I am still in debt. Advise me on what to do to learn those. What website or book? I am so worried about my future.