Spear/gear recommendations

Never played poe1 and this is my first real build that got to mapping and end game content. I’m clearing t15 maps without trouble but have yet to fight a pinnacle boss or doing the higher tier maps and looking at future upgrades options. Basically my questions are

1. For spears am I better going with a seaglass spear and a lower physical damage roll or other rare spears with like 150% physical damage but snagging crit chance on them to be closer to that 10% base seaglass comes with? And what other rolls should I be looking for? I know high accuracy is a must for my build, but aside from crit chance and crit damage is there anything worthy of note?

2. For both spears and gear like rings and gloves, is there a difference between adding # to # physical, added # to # fire/cold/lightning? Like do they all equate to the same if they were to have the same tier of rolls? Or should i prioritize physical, then lightning, then whatever and so on?

I’ll include my build in a link, I have 3 div and 150ex so I’m basically trying to find out what I should spend my currency on to make the most bang for my buck. My jewels are pretty ass aside from the one, so I’m sure those can be upgraded. Any help would be greatly appreciated!

https://poe2.ninja/profile/character/1y2c55a6u4dwc/FaIIynn-8316/Eshonyh