I don't mean to say this offensively, but it seems you're not improving your mapping skills like most people typically do

It seems you're rushing your map creations, you're focused on just making something and getting it out, not taking time to plan layouts

It'll take more time, but i think you're able to learn best if you can decipher what makes a map good from what makes a map bad

Most new mappers will look at other maps, readjust their scaling, take inspiration, learn from feedback, and strive to improve how they make their maps. At TF2Maps, we want you to improve.

Here are simple and great maps i think you could strive to take inspiration from:

Cannery
Forklift
Sierra
Moosetrain

It WILL take time, and it might be exhausting, but I want you to work on your layouts and scaling. With enough time you'll certainly go from blocky, flat, sightlines to more structured, diverse, and balanced maps. You just need to put effort into it and people will eventually love your maps.