So we sort of have twins now, what are we looking at long term?

So we have an interesting situation where we have a 1 year old and we were given permanent custody of another 1 year old who was born about the same time as our child. We have a boy and a girl, and they're going to be raised as siblings. They aren't twins, but they look alike and have a special relationship already as they've been together for several months now.First, has anyone been in this situation, because I could use a mentor like whoa. Second, will they really grow up similar to the way twins do since they are the same age? I just don't know what to expect. Does anyone know of any resources out there I can look to for information?Last night we were chatting about future schools and I wondered if we should try and make sure to put them in the same classes or have them split apart? They have some jealousy issues over us, and toys, and food, and anything else the other one has. Our girl is particularly grabby and smacky when our boy has something, but our boy will try and distract our girl with something else so he can have what she has. Having 2 of everything doesn't help because even if they have the same book/toy/cup they want what the other has. We're trying to teach sharing and being gentle, and so is daycare.I feel like I'm rambling, and there's obviously so much more to all of this. I'm just looking for a place really to get some sort of information. We've gone from 1 child to 2 and I feel like we've just been sort of making do and limping along, we never expected to get custody of the other child. We're thrilled and just want to make sure we do things right. Parenting is hard!Thank you in advance for any help you can provide! via /r/Parenting http://ift.tt/2ge3koi