My point being assonances and alliterations are not hard. They're simplistic and easy to manipulate. Rhyming slowly is one of three things to me.
b)practicing concentration (c'mon. You try rhyming every sentence you say and write. You're concentration will improve like hell!)
c)practicing poetry or the like. The like being things like nursery rhymes, fables, and epics if you can learn the whole thing.
Other than that, rhyming is just rhyming. Rhyming and speaking are different. Just like speaking and singing are different. Speaking is mostly monotone with very little tonal differences. Singing isn't monotone, as there would be no difference. In rhyming, everything is measured, including cadence. Speaking, nothing is measured. And if it's free beat rhyming it's prose.