I don’t quite know why I didn’t realize I’d have to individually unwrap these and it’d be a pain in the ass, but there’s no going back now. Blue razz jolly rancher distillate soon. I’ve also got my sweet potato beer fermenting (it’s supposed to be pumpkin and sweet potato but the pumpkin I bought was rotting on the inside, so I just rolled with what I have). I also ended up making 80 dog treats from some of the spent grains from the beer, if pupper is happy I’m happy. Over all I think I’m coming back from my one year brewing break with a vengeance.
It sounds to me like your brother may have just taken the wrong approach. Perhaps involving that sister less by means of active participation, but just exposing her to the creative process and using her as a consultant may have improved that outcome. I don't figure you or your brother are expecting advice, but generally I find that it's best not to try and dominate someone else's interest as a means to involve them. Otherwise they may end up feeling dissatisfied or not immersed enough in the game itself.
The toughest part about enjoying TTRPGs is finding a DM that lets you exercise your variety of creativity. If your only experience is with your brother as a DM, it could be you just don't necessarily vibe with his style of doing so.