Hello I lost my ability too fully focus or understand things, an example would be a YouTube video which tells valuable information about things or simple facts about whatever the topic is I can't remember every single thing, hence before I would be able to. Also before I could understand everything properly and my brain would think of ideas in differnt complexities and problem solving. Also my brain would just process information faster just be a performance machine. I was just much smarter before, now I feeling like a blank carrot I'd you would say, now I can't understand anything like I use to before. And as we'll you know how you get that feeling like you get something, like a light bulb switches on in your head I don't get that feeling anymore. I can still understand things but when I do I don't get that light bulb feeling. When I understand something I can understand it but not fully my brain is just not processing as it should be. My brain is not fast or strong as it was before. I'm 16 year old male student. Ive never done drugs smoke or drink alcohol. Please help me.