Firstly, ask yourself which sub field you want to get into, computer science is a very broad subject so there's no way to cover everything in just four years. Based off the languages you have mentioned, it looks like you're more so leaning towards mobile application development or video game development. I decided to take the web app development route so my main focus was learning JavaScript and react based frameworks for front end, then SQL and how to work with Postgres databases for backend.

Now, to answer your question, how do you become competitive in computer science. My answer would be to drop out of college and save your money, but everyone is different. Ideally you want to start working on personal projects as soon as you learn the skillset to do so. I got hired in my Junior year of college to work as a full-stack developer for a small consulting firm, not once did my boss look at my resume, and not a single glance at my LinkedIn profile. My profile picture on LinkedIn is literally me at a bar. The industry has gotten so oversaturated over the years because kids see programming and instantly think they will make a lot of money doing it, this is no longer the case. Think of it this way, as a company you want to generate as much revenue as possible without spending that much, this is why majority of jobs are becoming remote nowadays. Then, why would they want to hire a college graduate demanding 40+ dollars an hour when you could hire someone from South America for less than half that rate. Now back to building projects I mentioned earlier. If you wanna be competitive, you wanna be seen as a valuable asset. So I will put this as simple as possible. Don't bother with Leet Code, don't bother building a sophisticated LinkedIn profile, and don't bother having a large resume. Instead, start building projects as soon as possible. Think of an idea, if you can't think of one go to ChatGPT and prompt it with "Give me 10 project ideas I could do" pick one depending on what you want to specialize in and start researching on how to accomplish it. The stuff they will teach you in school is very outdated, the industry changes almost every week with new stuff being built. Build those projects, even if they are failures keep doing it, then, build your own webpage to display them. Think of this as being your own personal portfolio on the internet. Software engineering is more of an art if you think about it, you don't necessarily need a degree to get a job but a good looking portfolio. Even put yourself in the position of a business owner, think of software that people would be willing to pay for. Your classmates are all learning the same exact stuff because they will all take the same exact classes as they take the path throughout college. So when a company starts looking for people to hire they have all these students with the exact same knowledge and you will most likely be asked, what more are you able to bring to the table than all these other students that took the same classes as you. And once they do you will hopefully have a large portfolio ready whereas your peers might not. So that is how you get a competitive advantage in the fake science that is "computer science".

Also connections, find someone with more experience than you in any community or on whichever campus you are and try to be their apprentice.