It's ok, that chicane is one of the most difficult parts of the track! One thing to be careful of is when you make any input, make sure you do it smoothly. If you need to lift off the throttle and then reapply the throttle in that first chicane, doing so abruptly could actually make it more difficult to make it through there without any problems. So just smoooothly lift off the throttle and then smoothly reapply it when you can. You shouldn't need to brake there, so just experiment with adjusting the throttle and see if you can pick up some speed. Also, if you're at very high revs and the throttle is very sensitive, try the next gear up to see if it feels any easier to modulate.