Define for yourself a different set of objectives: find the novelty in staying 2, 3 years at a company, in having a life without debt, in having money set aside

Define for yourself a different set of objectives: find the novelty in staying 2, 3 years at a company, in having a life without debt, in having money set aside. Work for a company that has a big and complex project. There are projects where it's virtually impossible to get to know all the parts of the code. Lower a little bit your definition of novelty when you're at work: consider as new having to work on bugs/features that you don't have any idea where are situated in the codebase when you first hear about them. Remember, there are jobs where you have to work only 8 hours. Take one of those jobs and spend your afternoons working on your own projects which can be implemented using whatever technology you want and can be as concrete as you want. Look at your job as a necessary hell, but try to find the fun in it while at work and always remember that you have your fun projects back at home