So I'm new to the game and wanted to try a 2 weapon fighter. Unfortunately because i needed 17 dex to get improved 2 weapon fighting I ended up putting 17 points to dex at char creation. I think this is gonna hurt me in the long run but Im not sure... My stats at lvl 1 are:

Str 17
Dex 17
Con 10
Int 8
Wis 8
Cha 8

I figured if im just DPS i don't need so much HP and I'll always have more HP than other dps classes like a rogue. Now I'm lvl 4 but i'm thinking maybe I should re roll with different stats, maybe lower dex and higher con or even int. I rather not but I don't want to be too gimp either. Any of you have some suggestions? I'm no powergamer but don't wanna be too gimp either

Also a guide as to where I should place my ability scores up at every 4 levels would be appreciated, thanks!