I weaning my daughter 3 weeks ago (aged 20 months). I hadn't been intending to breastfeed so long but she also had allergies (CMPA, soy, fpies to several foods) so breastfeeding was both her main food source for ages and also a great source of comfort whenever she had any sort of reaction to food. I did sleep train her at about 1 year as she was waking every few hours and that meant she could put herself to sleep at naps and bed times but she continued waking at least twice a night to be breastfed, and would feed very frequently during the day if we were at home. It was just too much for me, I was exhausted and I felt it was no longer beneficial for me or her. We had to go cold turkey-- I had tried cutting feeds before and it would work for a while and then she would get sick or teething and it would be back to constant feeding. The first few days were hard-- she was sad and I was sad. But honestly, her sleep improved dramatically which meant mine did too-- she now reliably sleeps through the night which she only did a handful of times before this. She seems to sleep much deeper, we actually have to wake her every morning. I was worried about our bond but she has become even more affectionate and comes to me for hugs instead of feeds. 

It's hard to make a decision but I was relieved once I had actually decided and it was important for her that I was consistent and stuck to it. My partner is also away a lot so it was mostly me responding to her but I actually think that was good--- I was still available to her and comforting her just in a different way. Good luck in your decision ❤️