Websites and other sources to learn c++ [closed]

I'm a computer science student. Currently, I'm doing a c++ unit in my class, however, I'm finding it quite hard as my basics are a little weak. This is why I'm looking for a good source to learn and develop my c++ programming skill while I'm at home. The unit I'm doing has already covered the basics however, I'm looking for some practice in the advanced section like operator overloading, template class, vectors, bst, etc. I have already finished the material that was provided on https://www.w3schools.com/ and I found it good but very basic to my requirements. Thanks!