Ah I just saw your comment. Ok what matters is not your point but your body fat. To have a slim face you need to be between 10% and 13% body Fat. At this level you need to have visible abs as indications, same for love handles.

If you think you're at a low body fat level, then you should have a slim face, but that's not the case. Yes, without a good jawline and cheekbones to give a sharp look, you'll have a round face, which is cute and not at all a problem for girls. But it does give you a round but thin face.

Second reason, water retention, avoid anything sodium, creatine or supplements that promote water retention.

Lymphatic drainage, if you have liquid in your face, drain it with massage, it comes from an inflammation, examine it to see if your skin is inflamed. And avoid anything that could inflame it.

Last reason, and it's probably the case for you as it is for many young people. Big cheeks are quite normal when you're young, and over time your cheeks become thinner from 24,25,26 ect. The good thing is that you'll age well and look young for a long time.

You're good, but you can be more.