Doing these small blocks will increase your sewing skills by a billion percent.
Don't just start with the easy ones. You'll get bogged down later and perhaps just quit.
Work across or down each row, or round and round from the center, whatever makes you happy.
I didn't put my sashing on until I had about 75 blocks finished. BORING. BORING. MORE BORING.
Do it as you go along. There are so many finished now you can see a lot of different ways of doing the sashing so
you probably can pick something and still be happy with it down the road.
good luck. Mine is double sided.