I think this is true for almost every profession: If you do it as a hobby, it's fun, if you have to build stuff for someone else with deadlines and screaming project managers, it's less and less fun.

The problem is that things that are fun and things that bring in money to survive are not always overlapping. But you could start to think about a fun side project you work on that has the potential to become a product people are paying for while working in your day-to-day job to get money in.