Squire warlock tips

New player here, only been playing for about 60 hours now mostly in pve but running the ruins norms pvp with friends. I’ve played around with a few different classes and so far warlock is definitely my favorite for its versatility. However I am somewhat struggling with what my best options are for the low gear lobbies. I’ve primarily been running TM with the usual perks (soul collector, vamp, malice) with crystal sword and spellbook, focused on Will, Vigor and Agility. Sometimes I do really well in fights where I land curses and swap to melee and finish with BOC and trades. Other times I exit to lobby to see i’ve only done 70-100 damage against 2-3 people. I’ve seen ALOT of mixed playstyles for wlock, so im kinda just trying to figure out what I can tweak to be more valuable and capable in squire runs. Few questions:

Is a longsword better overall to run in place of a crystal sword, despite not having the scaling of my will stat?

Is TM not the best option for low gear dungeons?

New thing im toying with is taking Dark enhancement and Dark Reflection instead of TM and Vampirism, and spamming more Bolt of Darkness and maybe taking Hellfire for some AOE damage, is that viable?

Any help and advice is much appreciated!