I take 50mg Vyvanse as prescribed in the morning. I don't think it's an addiction but close (Mental dependence due to dopamine and norepinephrine tolerance in the brain and physical dependence due to the adrenaline that is produced less by the adrenal glands). There's also dependence due to the fact that I have chronic fatigue syndrome and hypersomnia.

I stopped using stimulants many times. It takes maybe 3-6 months to a year to start feeling better but I never feel as awake and focused when the effects of dextroamphetamine is in the blood when I'm taking it every day.

I don't think I've built much tolerance and I've taken tolerance breaks. Maybe in the future (10 years), taking Vyvanse will be like how I am when I'm not taking it. Although I plan to stop taking stimulants in about 3-5 years.

I started using THC and trying to find a good strain for ADD (Focus) and fatigue because some sativa gives me an adrenaline rush.