Congratulations on starting your first grow! It's great that you're seeking advice and trying to learn as much as possible. Here are some pointers that may help you as you move forward:
Monitor your plants closely: Keep a close eye on your plants and look for any signs of stress or nutrient deficiencies. This will allow you to address any issues before they become more serious.
Be mindful of your watering: Overwatering is a common mistake for beginner growers. Make sure you're only watering when the soil is dry to the touch and avoid getting water on the leaves to prevent water stains and potential mold growth.
Use high-quality nutrients: While you're on a low budget, using high-quality nutrients can greatly benefit the health and yield of your plants. Consider investing in a good nutrient line that provides the necessary nutrients for your plants.
Adjust your lighting schedule: For vegetative growth, a 20-hour light and 4-hour dark schedule is good. However, when your plants start to flower, you may want to switch to a 12-hour light and 12-hour dark schedule to encourage bud development.
Consider training your plants: Training your plants, such as topping or using LST (low-stress training), can help promote even canopy growth and maximize yield.
Remember, growing cannabis is a learning process and it takes time and patience to get it right. Don't be discouraged by mistakes or setbacks, but use them as opportunities to learn and improve. Good luck with your grow!