You get used to it over time
Trimming so you can not oversheet is not alone difficult, but not good as you will get an odd sheeting distance, compared to your other kites, and you will not be able to use the kite fully if you "close" one end of the sheeting.
But if you only ride very rare with smallish kites, you might not get used to it, and it can be the only solution maybe...
Easy for me to say you will get used to it, as I ride 3.5 and 5 and 6 m2 very very often, also use same length of bar for these, as for my +12 m2 kites. .
My point is, you can easily get used to it, if you ride now and then.
If rarely, it will take a long time to get used to.
And what you experience is exactly right, as everybody experience first times with small kites.