Elometer is just a test.
A true rating system score is only relative, i.e. it means something only among the members of a group (that should be big, but is finite). After choosing Elo, ree, TrueSkill, Glicko - here's a comparison - or what you like better, it makes no sense at all to compare your score within a group with your or someone else's scores in other groups, or do some other abstraction.
You can go on playing online and check your Elo variations, or record a subset of matches in another rating system (as aforementioned Glicko, TrueSkill or rankade, our free-to-use rating system), or in case use them for your club, or friends, and track your score vs matches or time. These are good ways to measure your progress.