I would suggest you join the various harp Facebook groups and lurk for a while. When you feel familiar with the groups pose the question you are asking above and also see if perhaps there is interest in another FB group for harpists with children.
Meantime, I would be diligent about keeping a practice schedule. Hire a sitter or do kid trading so you have uninterrupted time. You may also want to schedule a recital or concert so you have a deadline and purpose for moving forward with your harp skills. It is so easy with a full time job and or with children to stop playing.