Don't be discouraged! I also created our floor plan myself, using the same program. During the offer phase, the design was reviewed by a whole bunch of planners and architects but was ultimately incorporated unchanged 1:1 into the submission plan and later into the construction plan (due to lack of alternative suggestions). If you know what you want and have the necessary leisure, it’s doable. It takes a lot of time to find the perfect solution for yourself. For us, a few months. But you only build once.
In this forum, our design was also pretty heavily criticized. The main point of criticism was the 6sqm small study. In the meantime, the house is built and the room looks as expected and is exactly how I wanted it. => I do NOT want to say that you should ignore the suggestions mentioned (which I agree with)! Rather, that tastes are totally different. You yourselves know best what you like.
I think the floor plan is not so bad for a first draft; there have been others here that were worse. I want to encourage you to try a version 2.