Start with Plato’s writings about Socrates. Republic, is widely considered the best. You can listen to lectures like this old one from Professor Sergue of Princeton YT from the 1990’s. Note that the late Professor passed a few years ago, so naturally YT promotes it because it is high quality content, in medium/low resolution, and no one is likely claiming the revenue. In other words, do not feel guilty about using Pipe Pipe, and perhaps just download a copy to keep on hand. That is a rather good 3 part lecture series. This is something your local library will have in book form. If you search for “mass market paperback” with Plato, you are likely to find new books at around $5 too. These generally have more updated text than gutenberg.org, but that has several options too.

Developing a philosophical mind and independent ethos like Socrates will do much to help you develop in very useful ways, both inside and outside your bedroom.