Dear Antonios,
With all things in life there are pros and cons. My grandmother always taught me that when I face a tough decision, I should write down the pros and cons to each side of the decision. With doing this process, you can always see in black and white what the best decision should. Sometimes, however, it is not that clear, and you may want to use a decision weighted matrix.
Nonetheless, I can only offer some advice from my experiences. I left university during my second year. I first started studying Civil Engineering, which I found utterly boring, so I changed to major in Mathematics and Physics. While I really enjoyed most of the content, I felt at that time that university wasn't for me, so I left. I thought at the time that I was wasting my time and I could use my time more wisely than studying a standardised degree. That being said, herein lies the double edged sword - do you want to get book smart, or street smart? What I mean is, if you stay at university you will most likely get book smart (and this is not a bad thing). It will probably set you up in a good job, from which you can pivot moving forward. I went the other way and decided to try many different things and am still doing so. I have ended up working as a software developer for a large hedge fund without any formal qualifications because computers is where my ultimate interest took me - I would not have known if I stayed in univeristy! Again, with that being said, I find myself in a crazy work life (working ~60 hours per week) and studying a full time degree now, which makes it extremely difficult. I feel like I have done things backwards, but I can never know that because had I stayed in university I probably wouldn't be in the position I am in. This has now lead me to this platform where I am currently looking at purchasing my first rental property, a bit late at 30, but rather late than never!
With all this, I can only say do what you are passionate about and life will follow through. One of my philosophies is life is always working for you, you just have to make the waves through your passion and effort.
All the best with your future endeavours!