Miners have the unlucky position of always sitting in one place because you will collide off asteroids and be stuck. This will prevent your escape in case a red entering system and warping to your belt.
A huge tip is be aligned to an object, ie Citadel, station, bookmarked safe spot, tower, etc. This will help your align time as your ship will not have to spin around.
Watch the intel channels like a hawk for red fleet movements. Intel channels are your friends, and can be the lifeline you need to get save before they enter your system. If you are being attacked let others know in the intel channels “TheCitadel” & “SOV SPACE”. You will need to report the ship types, system and your location (ie: ice belt). This will ensure the response fleet can form a plan of action to take care of the attackers.
Flying what you can afford to lose still applies to even miners. Flying a squishy hulk that cannot tank battleship rats and possibly scramming frig rats can get a person down. So if you are not wanting to take the chance of more yield vs survive ability you will want to fly the Skiff. Keep in mind that Rorqual mining yeidlds the most ore but escaping quickly is something it is not good at. An interceptor can warp to the belt and tackle you before your ship hits warp.
Miners will want to consult the website Ore Charts to see what are the best ores to mine. Sometimes the best ore to mine is what you need to complete the project you or your corporation is working on not what best pads your individual wallet.
Keeping the mining index up in a SOV system is something that miners are always wondering about. The Bloodtear Industy Index Report v3 describes all the numbers of ore needed to be mined for each level, and describes the different ore anomalies that you will encounter in your time while in providence.