help me , i'm worried about my little bro!?

[Sadia Merchant]

assalamualaikum

ur concern for ur brother shows u must b a wonderful sibling and are really keen to set things right for him.

the only thing u can do is firstly dont yell at him. dont tell him stuff like i kno u r lying. dat will only make him even more defensive and if he lies too much very soon he will start believing his own lies.
once in a while just tell him, even tho u kno he has lied, n he knows u kno he has lied, tell him u believe him n trust in him. over time he might start to feel a bit guilty although he is not dat small anymore.

another thing, and i find this mostttt effective in reforming a household is to play a tafseer of the Qur'an. take any surah and any speaker of ur choice, keep the volume on loudspeaker so it is somewhat audible to all members of the family. i kno dey will get a bit irritated in the beginning and very very reluctant too, but just keep going with it and even if they catch two or three sentences of the whole thing, believe me it will make a massive difference. this is wat my parents did too so in a way its a tried n tested technique. i cant say we became awesome, but at least it played a big part from us going bad.
just do it for maybe half an hour everyday n at a time when u r sure everyone has the highest chance of listening.
i recommend nouman ali khan's tafsir of all surah's from the 30th part.
play any and keep it doing it.

even if it doesnt show major changes, at least u will gain a lot of knowledge, ur brother will feel some guilt n not do bad things wen he is listening to the words of the Qur'an being explained and u will feel like u tried something.

gud luck. i hope things improve soon Insha Allah!