"Burnout" is really about systemic issues rather than things you can necessarily control in a given system. Interestingly, one of the biggest determinants of burnout in physicians is the level of student debt. This is why IMGs have lower rates of burnout, because they tend to have dramatically lower levels of student debt. So one of the big factors is for students to do their best to avoid accruing high levels of debt, and for those in practice to work hard at eliminating that quickly.
Other things that seem to track with burnout are features of late capitalistic healthcare including "productivity targets", high volume practice, quality metrics, patient satisfaction scores, low levels of autonomy, documentation/EMR bloat, and moral injury from feeling like you cannot provide the standard or quality of care that patients deserve. Dealing with monotonous tasks that alienate us from the actual practice of psychiatry (like doing prior authorizations, interacting with insurance companies, pharmacies etc) can all contribute to burnout.
Always have one foot out of the door. Always keep looking at other opportunities and jobs so you don't feel trapped. Take long weekends, take vacations, pivot to what you are passionate about and find a way to focus on that. The more control you have over how you practice (e.g. appointment lengths, frequency of visits, which patients you see) and the more you can farm out things like doing PAs, the more fulfilling a career you can have. Also, don't compare yourself to others. The most miserable people are the ones who feel upset they don't make as much as such and such, or gripe about NPs taking "our jerbs" etc. Be content with your lot in life and if you want more then put in the work and make it happen.