I've just finished year 13 and did sociology and as teachers know that it is a new subject for many people there are more introduction lessons than for other subjects so I just printed off and looked over the specification. I went to a sixth form rather than a college so I can't really give advice on college life but for revision for sociology, I made quizlets on every chapter that I tested myself on regularly then once I was confident on the quizlet, I would use blurting to recall everything that I could without prompts, then used the quizlet to add in what I forgot in a different colour. If I consistently forgot certain content I would make flashcards/mind maps/posters/post-it notes (whatever I thought would work best) on those areas and repeated this process throughout the 2 years (I'd say the key to all revision is to make sure that it involves active recall). I also created essay plans which summarised the key sociologists/statistics etc, key question (usefulness, for and against, cause and effect), core debates (structure vs action, consensus vs conflict, positivism vs interpretivism), evaluation points and overall conclusion
Hope this helps and I'm happy to answer any specific questions you have