I just got Mr 17 and unlocked Archon Hunts, but it is so hard for me that I got unmotivated and honestly have no idea what I should do next.
As soon as I found a favorite gun (that would be Fulmin), I spent some plat to make a good build for it and after 7 forma I honestly was really happy with the result, it was helping me through a lot of content (except Profit Taker) and I was really enjoying it... Until I reached Archon hunts.
The mobs in Archon hunts barely take damage from my Fulmin and also do a lot of damage to my frames to the point that right now is impossible for me to solo it, and I don't like being carried every week because it feels like I'm leeching. So please help me what should I do next? I'm on my way to unlock Steel Path but I got my ass kicked so hard I'm not even confident enough to tackle SP without being carried again.
Archon hunts are harder than steel path. I would try to get comfortable in SP before worrying too much about archon hunts. The Fulmin, particularly a 7 forma Fulmin, should be fine for steel path. An upgrade if you like that style of weapon is the Tenet Arca Plasmor.
If you haven't done much SP, I also wonder if you're using weapon arcanes. Primary/Secondary Merciless are a pretty big step up in damage, so I'd start farming steel essense for arcane adapters if you haven't yet.
In terms of guns for Archons, the Zariman Incarnon guns (particularly the Felarx for the archons themselves, and the Laetum for regular mobs) are good choices. The Kuva Hek is another good gun for taking out Archons.
In terms of frames, someone that can stay alive easily like Revenant or Nezha can be a good way to ease yourself into it.