There are lots of detailed posts you can find on this forum by searching and opinions will vary on waxing specifics.
For my part, I do not use any solvent on the board unless I am trying to remove some specific soil or stain. I hot wax every 2-4 days depending on conditions. You can tell if the base is slowing down or if it gets very cloudy whether you need to wax, As for base repairs, matters on depth but shallow gashes, not to the core material, can typically be sealed wiith a ptex candle. good luck.