Imo psychology is a hard subject to get started on by virtue of the fact that it’s a subject with multiple approaches (a subject of subjects). Namely social, cognitive and biological psychology (amongst others) all work on different assumptions about the mind, as opposed to ‘hard sciences’ where the method of inquiry is pretty uniform. It is also important to view fields like cognitive neuroscience as an amalgamtion of different approaches. That being the case, I recommend reading the approaches and research methods section of aqa a level psych textbook (year 1 i think) and find out where ur interest lies in and then start reading actual books or papers.
For philosophy, I recommend the philosophize this podcast, or for a summary of contemporary philosophy, o’hear’s ‘what is philosophy’. Again, though, find where your interest lies and engage in further reading from there… It doesn’t need to be one particular area (probably shouldn’t be).