Help with duelist build

I want to play duelist and I don't know anything about builds and all those builds I see on YouTube cost like 15 exalts or so and I don't plan to grind 24/7 just for 1 build so I want a very good cheap build (and skill tree) for beginners that I won't get oneshotted in every boss fight. If you can tell me what skill gem combinations should I use that would be awesome. I will also use PoE.trade. I am not so good at dodging do i need to be able to survive bosses such as izaro, kitava, Malachai and all those bosses.