WJEC A LEVEL History Coursework

Hi! I do history and this year along with our two modules (Nazi Germany and Protest/Reform in Wales) we have to do coursework. Sadly, we weren't allowed to create the questions ourselves (idk the teacher just didn't let us). So the question we're doing is - "A vibrant and dynamic President who was committed to an American of peace and progress," how valid is this assessment of the presidency of John F Kennedy? I'm really struggling with this coursework as my history teacher who teaches this aspect of the course, hasn't really explained anything at all or even taught us much. I'm struggling the most with finding sources and just laying out the coursework in general since all we were told was "You have coursework." I do have a GCSE booklet of sources to do with Kennedy, but since it's GCSE it isn't as in depth as an A-level one could be. I would really appreciate if any students who have done history coursework could suggest good websites for history sources (esp ones to do with Kennedy) or just tips and tricks on how to complete the coursework in an effective manner. Thanks!