also, if your hands are in ANY WAY stiff or tense, you will not achieve the flow of motion you are seeking.
Listening to the piece played by someone that can play did help me a great deal when I was going through Jazz, Rags and Blues by Martha Mier. Youtube was an excellent source but I cannot find this piece I am trying to get right anywhere on the internet. It is an from an old abrsm grade 2 book (2005/6) called Barcarolle.
.....into manageable bits. Bernhard (OWPB) used to say...