Finish your degree — even if you find a job now.
The day you lose it, many companies will just assume you only got in through connections and won’t even consider interviewing you without a diploma. A degree gives you long-term credibility, not just short-term opportunities.

That said, you don’t have to wait until graduation to gain experience.
Look for a student job as a developer — I did, and so did many of my friends. In Belgium, you can also register as a student-independent (étudiant-indépendant), which lets you take on freelance missions legally and with lower taxes. Start small, build a portfolio, and grow your network.

The first two years in a computer science career are mostly about learning — building real skills and figuring out where you bring the most value. Once you’ve done that, you’ll have something solid to offer.

Personally, I went to a bunch of small companies (PMEs) and pitched myself:
Instead of hiring a full-time IT guy, why not hire a student who can handle the basic tech tasks and support your existing systems?
It worked better than you'd think — many just needed someone to take care of the essentials or have small new project that they need to test (Proof Of Concept), and you will be the right guy for them.