Welcome to the forum, Jennie. :)
1- Note the corrections.
2- "Yeah" is casual and not always appropriate.
3- Tarheel had already covered that point.
4- Please add "Not a Teacher" to your posts. After 10 or 20 posts, you can add that line to your signature.
[ 1]: Instead of repeating the same phrases (e.g. “old generation”), you can vary your expressions a bit.
[ 2]: That’s too formal and almost unnatural. It certainly does not fit with the overall level of formality of that paragraph.