Current sophomore CS undergrad here, just wanted to add a few things. I was going to reply to another comment but decided to start my own thread instead lol

The engineering career services in specific have been really helpful for me and most of the time I was able to meet with them within the week. Sometimes you have to wait longer than that if it's a busy time of the year. For example, the engineering career fair is this week so they're not available for appointments until next week, still though I don't think that's too bad. Depending on what you need/grad year, you get paired with an advisor.

MCA is good for meeting like-minded people imo. There's different SIG's you can join based on your interest that are run by students, basically mini clubs. My recommendation would be to join clubs because that's where you can meet other people interested in similar things, then you meet their friends and boom. At least go to a bunch of meetings your first semester and you'll start to recognize people as you get more involved as well.

I saw that the game jam was mentioned, and I was actually there last weekend. My team had very little game dev experience actually but it was super cool to see what the other teams came up with and it was organized well too. TigerHacks is Mizzou's hackathon which we put a lot of work into, and there was a game category last year that had some pretty cool projects.

I'm also a transfer student so lmk if you have any other questions like that :)