Learning pieces is usually frustrating for me, playing improv is relaxing and fun. I have definitely optimized toward improv rather than reciting songs. I have a bag full of chords, progressions, and scales, and I do whatever I want with them. I'm not trying to record an album, so I'm not too fussed that occasionally it's a little incoherent or wandering. I'm just trying to enjoy the act of musicing.