Whether you are a veteran player or just starting out, the one thing you need to remember is it's all about muscle memory. If you are playing a chord and all the strings ring true you are doing good. Keep practicing that chord by switching back and forth with other chords. Take your time to make sure the strings all ring true on every chord before switching to the next. As you do this the muscles remember and return to that position faster and faster every time. Even seasoned player need to do that when learning new and different riffs and chords.