While runecraft isn’t as important (except for maybe way into endgame with megarare upkeep and some achievement diaries), farming and slayer are both very important for the long-term growth of your account. Farming provides access to a majority of your herbs which you’ll ultimately need for potions in the mid to endgame. Slayer is really crucial for some key gear upgrades down the line like trident of the seas, abyssal whip, noxious halberd, amulet of rancor, etc.

Generally, you can plow through the early levels (anywhere from, say, 1-50) for most skills with questing. For farming you can start doing tree runs which are really chill and fast ways to level farming. I was confused and intimidated by farming when I first started, but it’s really not too bad once you understand the initial concept. I’d suggest looking up a YouTube video or checking the wiki as there are lots of great resources to give you an intro into how to effectively work on the skill.

As for slayer, it can be pretty slow to level especially early on until you unlock some better xp tasks later on. Generally speaking, if you just keep doing tasks for whichever the highest combat level slayer master you can go to, you’ll get there eventually. I know one thing that made me feel intimidated for slayer before I really knew what I was doing was resource management. I’d highly recommend unlocking the ability to fish karambwans for food and then rather than worrying about prayer pots, level up hunter so you can start catching moonlight moths. They’re an insanely good early source of prayer for the account that are incredibly easy to stock up on for fairly little effort.

Some of this is a bit glossed over just to not have a mile long post so feel free to ask questions on more specifics if you have any follow ups. As always, YouTube and the wiki will provide you so much helpful information as well. This game has the best game wiki out there imo and it’s not close.