I can relate, but not entirely since I am an older retiree who has both BFA and MFA in Studio Art. I have NOT been creating art all of my life. I began it as a hobby when I was working full time and raising a family (3 children). Later in life I found myself retired against my will - golden parachute victim - and decided to return to university as a full-time art student.
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But I've never even thought of supporting myself with my art and have never had expectations for my work selling well. So it's remained a hobby. In the past year or so I've had a hard time getting motivated to do anything - mostly in the 2-D field (painting & drawing). Every time I think about it I just can't seem to justify adding yet another object to the large inventory of "stuff" I have in storage.