when going for winds, try to get yours and/or the dealers. That will automatically give you a cheap 1/2 han hand. Winds don't always give you 1 han like colors.
Second, there are only few types of hands you could go for with that configuration (since you didn't go for just runs or just sets). You could of went for half outside, which means all your melds have 1's or 9's, and honors are allowed.
You could of REACHED for 1 han, I don't know if tenhou allows you to reach on a no-han hand though.
You could of tried to make 3 closed sets. Or even a flat hand if you didn't use honors, used all runs, and an open wait.
closed tsumo is 1 han, if you had a proper hand to begin with.
You should just write out a list of all the hands for quick reference while playing. I did. One column for if you can steal, one with the names, a third with the description, and a 4th for the han value.