you sound normal to me, perhaps it's just the world.

there is nothing abnormal about being your own person and being independent, people accepted you and you had a small group of friends at school, you were shy, a lot of people are.

you get bored easily, and your mind thinks of other things when something doesn't interest you, sounds like an intelligent mind to me, not an abnormal one.

current work is successful.

But you do say your depressed, and often we view ourselves and the world a lot more negatively, sounds like your depression is making you feel 'less than' you actually are.

Try not to put a label on yourself like ADHD, as it sticks, and sometimes people become that label, depression comes and goes, counselling like CBT can really help depression.