Sour Kush GCS First Grow

Started small amount of nutrients. Tried some lst, honestly after main stem bent and grew over i untied and im probably just gonna let it do its thing. Looks like once it stretches there will be at least 4 main grow sites at same height and i dont wanna mess around too kuch first grow. On day 28 i changed schedule from 24hr to 20/4. Some of the leaves were turning over which concerned me into changing it. A friend let me know it was just the plant sleeping which it will do even in 24hr light but i think 20/4 will still be beneficial. Only had it at 24hr to warm the temps as its been cold here in colorado.