I haven't seen you on here before but I have only been on here myself for probably a month or so, so welcome back.
It sounds to me like you and your brother are normal teenage brothers who fight over anything and everything, is that right? You say he is judgemental and implusive, about what exactly? You say he is the favourate lately, did he do better in school than you or are your parents just showing him a little bit more attention at the moment? It's hard being the second child, I know because I am the second child in a family of 4 girls and that was really hard.
Can you sort it out with your counsellor, just explain what happened I am sure she will understand.
Mmmmmm..........the summers are long aren't they? If you aren't old enough to get a job, what about doing some volunteer work like at an old peoples' home, or maybe a preschool, or do some odd jobs for your neighbours or just visit some sick people in hospital, just something you might want to think about and I think that would probably help with how your parents see you too. You don't want to sit in front of the computer for the whole summer do you?
I'm not sure what it is your dad is smoking, why don't you ask him about it? Just say something like "Dad, I didn't know you smoked?" and see what he says.
I hope you will keep posting and let us know what you are doing with your summer Jason, as I am particularly interested.