Taking CBD is an individual experience, with dosing and frequency varying widely. As such it is not appropriate for us to tell you how much CBD to take. However, we do suggest you start slowly, to find out what works for you.
There are currently no official guidelines around how much CBD to take and there is currently a lack of solid clinical evidence to definitively state the therapeutic range of CBD. Research effort is currently underway to address this.
As CBD is a biologically active compound, things like body weight and age should be taken into consideration. Things which are harder to determine but which may also affect dosing efficacy include metabolic rate, genetics and the current health of your endocannabinoid system.
The best way to start is slowly, with a low dose. Keep a close eye on your mood, attention and how your body feels. Gradually increase your dosing and see how your body reacts until you reach a level that you feel is beneficial.