OP, one of the benefits of being an Arcanist is you have access to Topaz Carbuncle. He's great for helping solo fates. Once you hit 30 and unlock your chocobo companion, it's like having your own mini party. Thanks to this, I personally found soloing SMN to be quite relaxing and enjoyable. I hope this helps.

As others have said, remember your hunting log. That small boost can help you a ton!