I work full time 5 days a week and develop games as an hobby and I have; Anxiety (take meds for it) , OAB (take meds for it) , IBS (take meds for it) , High blood pressure (take meds for it) , Fast heart rate (take meds for it) and constant acid problem that I have to take meds everyday otherwise I get lovely gastric headaches constantly.
I recommend you pick a simple game concept, something that won't require too much of your time, then add a unique element to it, something to spice it up, force yourself a deadline to complete (be realistic). Post completed bits as you work on it. Ideally aim for a couple months tops in your spare time. Be stubborn and push yourself to do it.