That's perfectly acceptable. As long as the question is on-topic, you can ask it. If you bump into a problem that you think might be tricky for others, feel free to write about it here. [I have done so successfully in the past.](http://superuser.com/q/1014519/380318) Of course, people are free to downvote if they think the question is lame (i.e. lacking research effort).

As [Can I answer my own question?](http://superuser.com/help/self-answer) says, you'll need to wait two days before you can accept your answer. You also won't get the +15 rep for the accepted status or the +2 for the accepting, though upvotes will still count for +10.