If i would be first generation 2H again i would take this build:
21/18-2H:
Level 30 (4 420 577 xp)
Strength: 21
Agility: 18
Hit points: 70
Skills to attributes: 8
Ironflesh: 7
Power Strike: 7
Shield: 0
Athletics: 6
Riding: 0
Horse Archery: 0
Power Draw: 0
Power Throw: 0
Weapon Master: 3
One Handed: 1
Two Handed: 130
Polearm: 1
Archery: 1
Crossbow: 1
Throwing: 1
It has decent damage, and good hp so you can take some hits while not being to slow because of 6 athletics.
I would get a armor between 5000-8000 Gold + some cheap gear for foot and hands + a medium helmet (around 4k-6k)
As weapon i would take for example Sword of War or Two Handed Sword but there are a lot of other options (cheap and good options would be dadao but you would lack training in thrust then for the beginning).
I would recommend you to lvl up on siege until you got at least 6PS and 5 ath. (because you will get more fights there)
Then i would go to duel servers for a half hour everytime you play. Perhaps get into a clan
to find some people to show you the tricks.
You will see how playing on duel will improve your skills fast.
Ask other people to show you some things. There are always some nice guys
that take some time to show you something. (turn into your hits, lolstab, feints etc.)
Watch other players and look how they are fighting (after you managed to learn blocking *g* that should be first).
Try to do the same moves.
I played over 3 months until i decided to give duel server a try.
At the beginning my clanmembers always fooled me cause i couldnt block overheads ;)
Today im decent.