There are many people who have experimented with drugs during their youth who don't have addiction concerns. Some have smoked some pot, drank, even went to a party and rolled on E...and are not addicts. With that said, if I were seeing you I would want you to have a full addiction assessment before proceeding with clonazepam.
As for getting high or having euphoria with clonazepam...depends. It's kind of like opiates in a sense...not everyone gets high or has euphoria when they take opiates...actually most don't in therapeutic doses. Many hate the way opiates make them feel...groggy, less energy and a little sick. But, addicts process drugs differently...it effects them differently. Opiates give them energy, they have more confidence, feel like Superman. In the same way any of the benzos can do this as well but usually in higher than therapeutic doses.
Not giving any patients accounts I can speak personally about clonazepam as I was taking 2mg three times daily and certainly felt euphoria. It gave me energy and confidence. I'm not much of small talking with people I don't know...but I wanted to talk with everyone...felt on top of the world. But, I am also a recovering addict. I have a strong family and personal history of addiction.
It's why it's very important even when broaching low dose BZDs for your psychiatrist to take your addiction history into account.