Yeah only mine in planetary rings, and stay away from Resource Extraction Sites.
All i did when i got the game was mining, i had the sidewinder with no shields and as much cargo and the best bin i could get, and it only took a few lucky trips of gold platinum or palladium to upgrade to a hauler, which means more cargo so you can stay out longer, the only down side is the lack of weapons, so if you do get spotted by a pirate the only option is run as fast as you can. but after 2 or 3 runs full up i managed to get a cobra with a 6 bin i think, and that makes it so much quicker.
i did that for a bit to buy a a spec Viper to have a go at RES bounty hunting (just to get my own back) and protect the miners i once was. i now run a A spec'd Vulture and am having a load of fun melting Anacondas and Pythons, and getting paid for the privilege.
I still have my Cobra somewhere, i keep meaning to go back to it and do some more mining, its a good change of pace.
Stick with it you will be suprised how quick you make money when you have a bigger cargo hold and a bigger refinary bin. after all its all pure profit.