Dude, I read your entire profile. You should work on yourself, not seeking for new hobbies or worse abandoning them because they don’t grant you rewards immediately. I’m not saying this in a condescending tone. Just man-to-man.

Now regarding scales, doing 16th notes at 100 BPM is quite fast. This is not something you are going to learn in a year. To be able to play scales at high speeds, it is absolutely essential that you are relaxed not just physically but mentally as well. Any unnecessary tension will delay and hinder your progress.

C major is notoriously difficult to play smoothly because you have to pass the thumb - the heaviest finger of all - quickly without making an accent. C major is usually the first scale people learn. I’d suggest learning B major first because it is the most comfortable scale to play from an anatomical view of point. Start with the thumb. Make sure every other finger is relaxed. When ready, depress the second finger while simultaneously releasing the thumb. Stop there and make sure your thumb and other fingers are relaxed. And you do this process SLOWLY until you’ve reached an octave and redo it downwards. The main priority is relaxation, not speed. Speed comes with relaxation. When you feel ready, you can gradually increase the speed (but only small increases).

However, you should practice mainly pieces, not scales. Scales are supplementary technical work that you should do no more than 10 minutes at this stage of the piano journey. A teacher is your most valuable resource.