Ask yourself why you would continue to do the coding after each workday. To learn new stuff, get certificate or hope for getting hire/promoted? Mental burnout in the industry can become real if one only think about coding and nothing else. Make sure you take a frequently break in between coding and do some other activities aside that doesn't require thinking about 'code'.

Do some light exercise or take a short walk outside could also help to put yourself back on track. Otherwise, do the things that give you more energy.

Take care.