I think you are brave, but can you explain the falling out with your dad ? I had a similar thing when I tried to question the latest generation change with my dad. We have not spoken or seen each other in over 12 months. Why do you feel the need to go and see 8 year old give his first talk ? You will no doubt bump into your dad won't you ? How old are you ? Kids of 8 don't have to give talks infront of 70/80 people only to have the school overseea tear them to peices after they freeze once on the platform. This kind of child manipulation is child abuse if you ask me. It is not normal for a 8 year old to give talks and teach people 10 times his age.. My advise is don't go to the hall and try to contact your brother covertly without your dad having anything to do with it. Your dad is stubborn just like mine and a stiff neck jo ho company man.. Has he tried to contact you in the 4 four months you have left? If not after this weeks Watchtower he will never call you as anyone who has left is to be shunned and they will never contact you ever unless you go groverling back to the meetings and kiss the elders assssss.
Do not go to the hall you were out for 4 months already, don't let them get back into your head. You can help your brother by showing him that there is a life on the outside.. he is just to young to act in the way you have... you have broke the curse of the JW'S don't go back. Send your dad e-mails and text's to say you are ok but don't be tricked by family into going back.. We have lost all family to the WT but we are free and having a great time. I hope I have done enough to stop you setting foot in a kingdum hall ever again.
HHG