Btw, I am also graduating in psychology; for what it's worth, I also haven't experienced it as a challenging major. I believe it is a shame, as the subject can become challenging at the research level. I spent a whole lot of the time during my studies getting an overview on current theories in the field (through the Internet). If I understood correctly, you mention that you have interests that you'd like to focus on once you are at the graduate level. If it is of any help, you can give a quick overview on these interests (PM/or here!). I might be able to provide some input accordingly (articles, existing research projects, online learning resources...)