How to pursue philosophy as a passion?

Hello there. I've always wanted to go to college and get a philosophy degree, but without going into detail, it seems unfeasible with my current means. Who knows, maybe in the future I could one day pursue a degree. But I want to really study rigorously now. At my current level, I just read works that interest me, you know, Plato, Aristotle, Nietzche, Descartes. I get some of it, especially when it comes to morals or religion, and I don't understand some of it, especially when reading about thing Plato's forms and other "frameworks" (I'm not sure what the term would be, I hope you understand). At the same time, I find higher level works, such as Kant's books, completely unintelligible. I was never good in English class in general, so I feel like reading these advanced texts is a big weakness of mine. I don't know exactly what I would gain from getting a degree, but the idea of having a professor to guide and explain things, and having a curriculum that shows me the depths of works that I cannot see and connections between works that I do not know about, seems very appealing to me. So what can I do in my spare time to increase my level of understanding and be better versed in philosophy? To be honest, I feel very jealous of people who can pursue that degree, because I feel like they have an advantage over me when it comes to learning...