Those "easy" job you think might actually be hard, because of politics/bad managements/weird policies etc. And even if you're lucky enough to get a relaxing job, the differences between those 2 jobs might damage your mindset/thinking/focus.
You want a job that inspires you and which you care about AND you want to start a business or at least pursue some side projects which you think have a shot at making you money.
I've never seen that happen, personally. Something has to give whether it's your savings (you don't work a job) or your enjoyment of your job (you keep your savings).
I think for you given you've tried the "easy" job route and found it draining... You should spend your time now finding a job which excites you and energizes you. Put your time, and effort into that. When you have spare energy, work on your side projects.