Self-discipline is a skill you develop and maintain with practice. It applies to literally every aspect of life, including following through on projects you ch

Self-discipline is a skill you develop and maintain with practice. It applies to literally every aspect of life, including following through on projects you chose to start work on. Amphetamines like Adderall are a popular option, which others have recommended here. But I'd like to note I've seen my fair share of devs dependent on ADHD meds lacking self-discipline who just ended up staring at their phone doomscrolling all day at their desk, with their legs visibly restless from the stimulant train they were riding. Personally I treat all stimulants as simply performance-enhancing drugs. You still need at least a modicum of self-discipline to direct that focused energy at the intended tasks. IME adopting even a simple daily exercise routine and refusing to miss it unless you're too sick/injured (which means you're also too sick/injured to work, self-imposed, this is self-discipline after all) is an effective means of establishing and maintaining self-discipline. Plus it's good for your health and fitness as a bonus.