Hello dear Port Manager.
This forum is our official platform where you can leave your feedback on the game, whether it is positive or not. So you are in the right place 🙂
We are sorry to hear that you are not satisfied with our game. As you have already mentioned, in order to fulfill the jobs in the region you are currently in, you need ships with a higher power. In order to do so, you need to upgrade your ships in the docks or get more new ships. If you are struggling with obtaining the ship parts, please check THIS forum article about Ship Parts - you can find there different ways how to get more Ship Parts.
I would suggest you try to play our big events where you can obtain ships with higher power than you can get in the region.