I'm a solo player that just started last week, and am holding off on joining a guild for now until I have more to offer and have some maxed out combat skills.

It's honestly not that hard to progress solo if you have a good dungeon solo build. Even in red/black zones, the dungeons themselves are safe after the 90 second lockout, so it's been very chill for me, and a pretty good return despite all the memes here about dungeon loot.

I'm not sure if daggers clear quickly, but they should be safe enough with all the life steal and mobility they get. Being a solo player means you have to look up everything beforehand and doing your research on exactly how all the mechanics work (i.e. mount disappearing instantly on taking damage, can't change maps right away if you engage or stun someone trying to gank you), but also gives you the freedom to play how you want.