Hardcore Ironman If you're scared of going to mage bank, unlock the rune shop.
Don't bother with the blackjack miniquest, all of them have the same chance to knock out so just use the willow blackjack.
If you're planning on 3-tick fishing then home tele to lumby and pick up 15 swamp tar now.
If you think you're gonna keep messing up and making the tar multiple times, it might be worth your time getting 23 hunter
and using kebbit claws with leather vambs instead. 23 hunter should take just less than 1 hour.
Additional Information If you can't afford them then open some of your wintertodt crates.
Bank the fish for cooking xp
You can pretty easily grow cats while doing this fishing grind since you can just feed it the fish you fish.
I recommend raising 10 cats for death runes in total, after that it's up to you if you can be bothered.