They are so adorable! I miss those days. Having brother littermates can be very overwhelming at times but just try and be patient. Give them individual attention and try to separate them sometimes. Separate crates made a big difference and helps with individuality. My 2 are pretty dependent on one another and always need to know what the other one is doing. Training can be hard but make sure you devote time to this and do it individually (or make one stay and just watch when teaching the other) or they can just copy each other . Fighting/playing is an ongoing issue in my house, constantly having to reprimand them because we do not want them to think it is ok and hurt the other one. They don't really hurt each other mostly just roughhousing but every once in a while one can be a little too rough but stops as soon as the other yelps. With that said they are best friends and always want to be with each other. Both neutered at 6 months and honestly they are the same as they were prior to neutering. They are almost 1.5 years old now and so much better than they were when we got them. It was a learning experience for us as well as them. Be patient and just enjoy your babies
