The most important thing to achieve good results with autoflowering is: to properly control the main parameters for plant growth (pH, EC, RH). Since they have a limited lifespan, it's essential not to stress the plant to avoid losing those valuable days of growth.
Avoid transplanting, germinate your seed and plant it in a final pot. If you're growing indoors, maintain a light period of 20 hours on/4 hours off, or 18/6. If you're growing outdoors, keep in mind that the right season is summer since the days are longer and the nights are shorter.
And finally, a lot of love, time, and patience are also essential.
Don't overfeed; autos are more sensitive to over-fertilization.
I wish you the best in your upcoming grows.