Through my bachelor and my master degree in electronics and computer engineering, I have attended traditional courses but overall probably was taught some topics too superficially.
Are there high quality courses with video lectures on topics such as topology, measure theory, differential geometry and other graduate courses? I struggle to find a good resource, there are some of them on MIT OpenCourseWare and I am happy to pay for the courses, if necessary. I tried to read some books by myself but it was too challenging