I've never lost it but I for sure have my days where I wish I never became a SWE and became a baker or something instead. I don't know what sort of projects your coming from but I know big enterprise projects can really become a drag, couple that with politics and it's not a good mix.

For me I always did some coding at home on my own projects. For me one of the most stressful things in coding professionally is dealing with shit outside of your control. Being able to work on a project that is entirely conceived and written by you lets you have that control back, even if it's on a small toy project.