How to leave my job professionally?

Here are the most useful activities to leave your job professionally:

Think about your perspectives on your workplace and compare this to colleagues' and friends'. Examples include having a good team, having a good manager, having a short commute, having a non-toxic social environment, etc.

Talk with your collegues about this, and compare your thoughts to collegues and friends to see if they have any advice

Consider switching teams within your company

Consider switching jobs

Consider talking to your manager about it, to see if they can improve your workplace

Line up next-best-alternatives to your current employment: research, and interview at other companies

Select those that you feel are most relevant!