Another thing that needs your attention at RuneScape gold an early stage is Magic. It is possible to train it as your primary style of combat that will allow you to take down better enemies and earn higher rewards, but you'll be training Magic to improve other aspects of your life.
The High Alchemy ability you unlock at level 55 is the bread and butter that is required by every Ironman. If you don't have it, you'll need to sell everything you own to general store, which can significantly reduce the amount of profit you earn. You should aim to reach 55 Magic quickly to not waste any income that could be earned.
Questing is another item on your list. It is your goal to complete as many missions as you can particularly those that provide you with travel items such as Ectophial or Camulet. As mentioned before you'll have to remain self-dependent in your travels, so any source of buy OSRS GP teleport to get you further from your goal is an absolute blessing.