I'd add that at some point you want to discuss this with your manager. It might be entirely self imposed. Try to figure out if they are displeased with your pro

I'd add that at some point you want to discuss this with your manager. It might be entirely self imposed. Try to figure out if they are displeased with your progress thus far. Your colleagues think they should have hired someone with 12 years experience in this domain. You manager knew they would need to invest in you before you reached the level of your peers, even those with less overall experience. So long as your managers are happy, that's what really matters. I'd recommend you form deeper relationships with the peers so they are helping you learn. Let them know you value their experience and they will be more likely to help. Constantly remind them, in a passive way, that you are learning. It sounds like they are competing with you, and you want them to be helping you. This will happen much better if you drive it. If you have to, get management involved, but that has it's own down sides and risks.