heres a few tips.
don't practice at duel arena, the camera angles fuck you up, instead do safe portal at clan wars.
When bridding are you doing overheads, or smite/SS?
When i brid, i rag range/mage from the start, i only go in for melee when im ready for a k0, or if i'm downing the guy.
If your tribriding, like i always do.
Start off with barrage, freeze him, switch over to your range praysers/gear, rag range abit, throw your mage gear on, but keep your range weapon out, cast a few freeze comboed with range, throw range gear back on, pop a range hit, have your melee prays quickprayed, so you can run up have all melee prays on and spec out.
To counter that above method if its happening to you, adopt the kiting method, used in alot of big game MMos.
If you see the guy charging at you with a spec weapon or chaotic etc etc, Run away, while turning to cast a freeze and then spam clicking away again, to keep out of his range, once you freeze him throw your range gear back on or mage him, then once he puts his melee weapon away, throw yours on and spec him out
hope it helps.
I havn't bridded in prob 3 months after i sould my turm prod, but thats pretty much what i do, all i ever done was brid and clan wars,