Sounds like your on track with where you should be at really your speed will pick up so long as your always doing things right. Distractions are distractions will always upset macro as you trade it off for micro. Practice is what will increase that to a point where you are macroing enough and still have time to micro. If you want to get better at that you probably need a trainning partner you can ask to do harass well you macro to see what happens. Repetition is the key to learning and ladder games wont always give you what your looking to learn.
Even the smallest donations help keep sc2sea running! All donations go towards helping our site run including our monthly server hosting fees and sc2sea sponsored community tournaments we host. Find out more here.