Help Taming Parakeet?

I suggest gettin two different cages for the two birds until it is tame. Bad habits can rub off on the already trained bird as well and they wont really bond to you if they have each other. To tame the other bird I suggest sitting next to its cage and talking softly too it for about ten minutes a few times a day. Do that for a week or so or until it feels ok with you being there. Then try putting your hand in the cage and just leave it there with some millet in your hand but if he/she starts flying around the cage and freaking out back off immediately and start again. once that is done take her/him out of the cage and just sit with it awhile giving it treats and talking softly. Do the step up step down thing as well with these birds repetition is always best. Birds like consistency. Dont rush the process though or you could destroy whatever trust the bird has for you. This is what I have done with all my birds and they are great. Just remember to respect their space that cage is their home where they feel safe and can/will retreat to when they feel scared. If they do that put them back for a while and try again in an hour or so. I hoped this helps!