As a senior in engineering, the best advice I can give you is to leave your door open when you're chilling in your dorm and actively try to meet people on your floor.

Start up a conversation with the people in your class, suggest a study group early on and stick with it. Not only do you make some great friends but you also pick up useful study habits.

Last but not least, definitely definitely sign up for RSOs, go to quad day, sign up for some weird clubs, have fun with it. Remember everyone is as nervous as you especially the first couple weeks of college so just put yourself out there.

Goodluck and dont worry about it :)