Go to a good seed bank that gives good full descriptions of the seed, strain info, a expected grow time and possible yield. North Atlantic Seeds. Do some research and you will find strains that grow a little faster than ethers. For example I bought Tangerine Dream auto's that claim 80 days seed to harvest, while Girl Scout Cookies show 70 days just flowering. Dos Si Dos 70 -75 days start to finish, Critical Purple auto, 11 weeks flowering. You will see in the descriptions info on what you can expect each plant to yield also. Sweet Seeds has a large selection of what they call fast versions. They are supposed to grow and finish faster. Most people tell me the fast versions might save you a week and estimates are usually off and it will take a little longer, but you can at least get into the strains with lower time frames and be in the ballpark. I'm to new to be of any real help, but as a newbie I know the best way to find out is to experiment with different strains till you find one you like and grow enough to last from one grow to the next. The weed game is full of Champaign wishes and Caviar Dreams, don't get sucked into the hype cause at the end of the day you can't fool mother nature.