Correção de texto: The struggle to learn writing by yourself

This is the fourth or fifth site that I try to use to correct my writing. I am studying English by myself and, thus, I should find some way to correct my texts. However, in the internet, I have been struggling to find out this way. First, I tried the Lang-8, following a tip from a youtuber. The idea of the site excited me since some native could correct my texts for free; I just would have to correct others texts in Portuguese. Nevertheless, I found out that there are a lot of texts in English in this site and my texts was not been corrected. The same occured in Italki and Busuu, while in the last I could not even write about any task that I want. This way, I am writing in this site, that I already known, but I feel bad by just writing my texts here and wait someone to correct, I mean, without doing any contributtion to the forum. Thus, I am thinking about continue to use English Experts and try to contribute with the forum, even if my English is nothing to write home about. And if you that are reading could tell me some tip to my situation, I would be grateful.