Just keep riding. The skill will come. Sometimes it just takes hitting that black trail to break yourself into it. I am not saying to go way out of your zone, but progression will only happen once you push yourself out of your comfort zone. If you can, try to hit a different location. Different areas will have different things to offer and might challenge you in a new way. And unless you are planning on racing or competing, don't be to hard on yourself. Make sure riding is always fun.