I suggest you focus on Slayer for now
Barrows Best OSRS Gold site equipment is great, but if you die, the things degrade to 0, and repairing becomes expensive. I would suggest looking into Dragonrider equipment; it's hybrid (meaning you'll be able to use it while coaching all three combat designs ) and the whole collection offers a prayer bonus of +46 roughly. If you do Fairy Tale part 3 as well as also The Elder Kiln, you can reach most places in RuneScape in seconds. I'd say finish Shilo Village and visit Duradel. When you strike 75 slayer, visit Kuradal in the Ancient Cavern, and then move to Morvran to your final few levels. As for herbs, I believe RuneScape Wiki includes a spreadsheet with the very best herb to currently do.
I suggest you focus on Slayer for now; it's profitable (more so at higher levels, but nevertheless profitable) and also you train most of your abilities while slaying. I also propose getting 80 dungeoneering to get a Chaotic. Until then, try to receive 70 attack to get a Whip. Last, I recommend you do some quests today. A lot of your abilities are low, and the xp rewards will help you skip a few training. And glad to hear you have got membership!
Barrows is tier 70 tank armor, so it is somewhat on accord with GWD armor. Barrows provides more defensive boosts whereas GWD gives offensive boosts. I would avoid using barrows for normal slayer as it is not going to be well worth the repairs. Dragon rider is pretty costly, and you merely have buy RS gold 4m to invest. You should be fine with range as dragonhide is cheap (Royal is tier 65, prices maybe 30k for entire set?) Kuradel - 75 Slayer, Ancient Cavern (the one with Mithril Dragons) and the brand new: Morvan - 85 Slayer, Prifddinas. Will take a while.