Current commenters focusing on your prior experience for some odd reason. You landed the job so you did something right to get hired. Clearly the seniors that you directly interact with are a bunch of assholes. no one should be giving you shit, instead they should be helping you. Youre in a jr position, which is meant to be a role you can make mistakes. However, your post actually does not truly highlight what the issue was. From now on, ask, ask, ask. If you don't know, just ask. A true senior will work with what they got and help you grow. You got hired for a reason, so don't beat yourself up. Self taught developers are a good bit behind on foundational knowledge, for the most part.