Get a good night's sleep everyday. It is all too easy to stay up all night in college, but getting plenty of sleep is important. You may think you'll do okay if you mess around with your sleep, but lack of sleep makes schoolwork harder. You'll have trouble memorizing and recalling many things, and you will struggle with just about everything.
Social connections don't happen immediately. However, there are numerous ways you can help with this. Some of them can be quite simple, such as arriving to your very first class early. This allows you to have a few moments to speak to your classmates before class. This is a good way to break into a conversation.
Your school's career office can help you find a job. Not only do career centers help place graduates, but they also help fill part-time jobs around campus and nearby areas.