I feel like a fucking brainlet, my brain processinh power is close to 0. I can't focus or concentrate, my learning/information evolution systems are shit, hand eye coordination is shit, and so on. I oftentimes repeat the same mistakes over and over without learning anything. Abstract concepts are hard for me to grasp. And the worst thing is that all of my siblings are able to excel at things much faster than me. I have to work hard to make up for my brainletism. Any scientific advice on how to solve this?