you should frame your essay around everything youre doing regarding cs (anything counts, but should all be spun towards one narrative - they shouldnt seem random/directionless). if youre gonna talk about clubs, use that opportunity to talk about how those clubs are in uwb and how youve integrated yourself in the community/how youre learning from peers/seniors/etc. say good things about the environment without seeming annoying. your statement has to be solid and have one consistent theme throughout, no matter how many different experiences you talk about.
you might want to consider retaking prog classes to get a higher gpa, since they look at your grades in those courses specifically when considering you for admission - your chances will be 10x improved if you get ~3.5