brother,
There is no restrictions for asking good for this world and for the hereafter from Allah (SWT).
"And when ye have completed your devotions, then remember Allah as ye remember your fathers or with a more lively remembrance. But of mankind is he who saith: "Our Lord! Give unto us in the world," and he hath no portion in the Hereafter.
And there are men who say:
"Our Lord! Give us good in this world and good in the Hereafter, and defend us from the torment of the Fire!"
For them there is in store a goodly portion out of that which they have earned. Allah is swift at reckoning" (Holy Qur'an 2: 200-202)
Don't hesitate to ask from Allah for GOOD THINGS.
Also when we look at the mirror, we ask from Allah(SWT)
اللَّهُمَّ أَنْتَ حَسَّنْتَ خَلْقِي فَحَسِّنْ خُلُقِي
"O Allah, just as You have made my external features beautiful, make my character beautiful as well".