Help needed. Want to switch from RS to crit reave/ vaal double strike champion

Hello there, like the headline says I'd like to switch from RS (resolute technique) to a crit build with my existing character. Atm it's a reave/ vall double strike champion. I dont really know how to link my profile and skilltree and all that stuff, but I made my profile public. So you can see (I think).
I always played via guide so I don't really understand all skilltree interactions and all that stuff.
Would be kind, if someone could help me respec.
Character name is ReavyParrot