Breastfeeding

I’m thinking to stop breastfeeding at 6m mark - as in pumping…it takes a toll on me, and i find it inconvenient if i were to go out for a full day as theres just too much to bring and if i dont pump, my breast hurts…i also dont watch my diet, my MIL asks me to stop eating spicy food and eat more fibre to that baby poo everyday, but as much as im eating my veg, my baby dont poo everyday. And i love my bbt that i have it everyday (w25% and no topping) im afraid my breastmilk might give bby diabetes? not sure if thats works actually…if i were to stop giving my LO BM at 6 months, am i selfish?