1) what does proficiencies do for you character... 1 point = 1ee?
2) are these based on how often u attack or on exp?
3) how does stat points for damage actually work? does 1 point do something or how does the ratio work (like i want to use daggers on my rouge, do i really need 270 dex before its at the right ratio? rouges start /w 30 str)
4) and would this mean that something like a sword or axe would be better for climbing due to the ratio being easier to achieve?
5) is it better to have a sword or a long sword... the 1 second seems rather nice, but the 2 second weapon seems like they'd be GG for skills

1- Correct, 1 prof = 1 ee
2 - Based on attacking
3 - As for this I will not comment too much..I believe that the 270 dex gives you maximum crit and therefore output, however going max dex will still be effective.
4 - IMO it has a lot to do with what you can get your hands on and preference. You don't want to mix up weapons as your ratios will then become off if switching daggers to swords in a climb(vice versa)
5 - long swords will cost you a lot for ones that will outmatch a sword itself. I assume for skilling it wouldn't be any better as attacks based off attacking will power up slower as slower hits..

Hope this helps. PM me if need anything else.

tyvm ^^

1 last thing
before i buy the bank for the game, will i be able to hold items on another char and transfer them once i hit a certain lvl?

yes you can xfere items between you chars.