How do you handle sudden changes when studying?

Do you just become used to it until it becomes second nature?

Also, the effort it takes to adapt to these sudden changes. For example, you could be trying to think about something but that thought goes through a sudden change then your thinking about other thoughts and that’s a sudden change in itself. Then a macroscopic example is trying to study then you’re asked a question by someone while studying so you take time to respond to them.

I’ve gotten faster at doing this but I don’t know if I’m full proof ready to start studying.

The feeling of having to go through these sudden changes tires me out so much that I’ve stopped trying to study because I know beforehand that’s it’s tiring.

Maybe it’s just a bad outlook is what I tell myself but I don’t know. I just want to be able to study normally like everyone else 🫤 doctors, lawyers, accountants, etc