I have been a winds build since level 120 and loved the solo ability. At your level you would probably need 150-200 defense (if you don't have access to any defense gear, then put 75-100 points into dex). After Dex is taken care of, try using a 3 focus to 2 vitality ratio. You may opt for different amounts depending on your gear.
Start with hollowing winds on a 4* mob and try casting skills that get interrupted easy like bark, touch and breath. Slowly add in points until you aren't getting interrupted often on those skills.
After that max
Swarm or storm (your preference, I prefer swarm because I use on multiple mobs)
When you get to leveling on bolgs (160) you may need to put bark at half to reduce the huge burst of damage from wrath of bolg skill. Never been a fan of maxed bark because it becomes less useful the more points you put into it. I try and make the armor bonus equal to the armor bonus from whatever shop shield you can buy at your level.
Using this build you can solo multiple mobs at once and still be able to heal. I've found using other builds just made me get interrupted too often. You may need to make some changes as you level. I noticed that I needed to make changes around 158/159 (when you level on blogs), 168 (leveling on trolls), 175-180 (needed more defense in the tower), and now leveling in forbidden halls, I've found more defense is needed.
Hope this helps.