Reference Request: Suitability of a text and corresponding video lecture series request for "Matroid Theory"

I am an undergraduate student from the CS background.

While reading a portion of the text "Introduction to Algorithms" by Cormen et. al. I came across a section of Matroids. I was unable to understand it properly as I have not been lucky enough to have a formal matroid course.

I was recommended the following book "Matroid Theory" by John Oxley in this answer. Now I find the above book labelled as "Oxford Graduate Text In Mathematics" ,so with my current knowledge of as an undergraduate CS student (just completed 2nd year) I do not quite know whether I shall be able to comprehend the text, more-over the text is not quite short (a total of 719 page in the second edition). Moreover with the current tightness of the present curriculum, I cannot simply afford to start a text and leave it half way being unable to understand (it shall cause frustration).

So I request here to guide me as to whether I shall be able to understand the book given my current qualification. Moreover could a video lecture series be recommended to me so that I shall easily understand the concepts of matroid (in a considerably short time, given that I am planning to do self study and I shall not have any teacher support, without a teacher resolving doubts takes time).