You are issuing queries like
SELECT * FROM Comments WHERE ... to build your stats, filtering on dates and posts.
SELECT * means you retrieve ALL columns from the table, including the
body column, which is absolutely useless for building your stats.
This kind of query, especially when targeting a full year, is a performance killer for SteemSQL infrastructure and negatively impacts responsiveness for other users.
I urge you to limit your SELECT clause to the required columns for your stats. Please update your queries or I will have to take steps to keep SteemSQL running smoothly!
Feel free to contact me on steemit.chat if you need any help.