In general, Mining training is similar to an Ironman in its normal methods of leveling yet the main difference is that you need to dedicate one or two hours now and then work on mining minerals like gems and gems for Slayer bracelets. Or Volcanic Ash to make Ultracompost.
It's a good idea to not get to 99 using the traditional method, but spend time farming items that you will need in the future. With regard to pickaxes. You should not have any issues purchasing new ones since most of them are available at the NPC store , with the exception of the Dragon one, which is the only rare drop of the bosses. If you choose to mine gold ore, you'll get precious resources for smithing instruction.
Another challenging skill to develop for Ironman. Prayer requires a large amount of bone mass or income sources to help with building. The majority of players buy them directly from Grand Exchange but not an Ironman.
The best method for starting is to go on quests - exactly as you would with all of the skills. Simple quests like The Restless Ghost, Priest in Peril, Holy Grail, and Recruitment Drive will be there to guide you through the basic of Prayer technique. Once you have completed this you'll need to farm bones to gain higher degrees of Praying.