Triple turn in leve start at 25. If you have everything to 15 and Steady Hands II all the RnG cruelty is gone.

button mash everything to 25 and forward prepare the items you know you will need for the triple turn in items. The level 45 triple turn in is High Mythril Armor. Mythril Plates and Electrum Ingots. If you have Gsm to 50, the electrum Ingots aren't going to be a problem. The Mythril plates can be HQ'ed with HQ Mythril or you can wait for 44 Armorsmith to start making them. If you have the main hand, off hand updated to their level you won't find Mythril Plates to be very hard to HQ at 44.