My last piece of advice is to keep it simple first grow. There are so many things to get dialed in -temp, rh, water, nutes, airflow, etc- that just getting to harvest is an accomplishment. If things start to go wrong, you want to know what it was.
For speed, the best thing you can do is get yourself a separate area for seedlings, clones, and veg. Then you can harvest every 8 or so weeks in just the time it takes for flower. As soon as one harvest is done, the next is ready to take the flowering tent.