> I can't seem to hold more than about 2 levels of call stack in my head. If you keep thinking that you can't then you won't. I recommend you to stop worrying

> I can't seem to hold more than about 2 levels of call stack in my head. If you keep thinking that you can't then you won't. I recommend you to stop worrying and do the work. In time you will find ways to accomplish your tasks. In any case you can't go buy a new brain so why spend time worrying? Looking at it differently: Even if a young you had greater mental ability, did young you have the same skills, experience, knowledge etc.?