A great goal is to take one psalm each day over a thirty day period. Repeat this sequence 12 times over a year and you will you may be able to recite all 30 psalms, either portions of or in their entirety.
Day 1 take one psalm from Psalms 1-5
Day 2 take one psalm from Psalms 6-10 etc
Here is a template chart to download to help organise your personal challenge: