Advice? Erm, is there anything specific you'd like advice on? Like talking to people, arranging things etc
You've probably been told this alot but you genually just need to be yourself, at first you might want to be slightly more outgoing and voice your opinions more just so that people do take notice of you. Well you've started all your new clubs and things so it's a great opportunity to make a point to smile or say hi to everyone you make eye contact with, little things like that that'll grow into conversations and then getting to know each other more

With girlfriends the only thing I can really say is that if they don't like you, don't spend ages trying to get her too because the chances are if she can't appriciate how funny you are and stuff she isn't worth it
Awh that sounds well fun! Do marshmallows over a fire and everything! Be proper cliché

Gaming party!? That sounds so good! haha