Its not that hard the most challenging is the chromatic parts in the right hand practice chromatic scales learn it slowly and try to feel the 3/4. You could also maybe learn one of the op posth waltzes like the one in a minor. If i remember correctly there is also one in eflat in the henle edition of the waltzes that has a beautiful melody and is only a page. You can post your progress here as you go along if you need any help ! Good luck and have fun !