In the spirit of giving a correction, and how to get them, the title should say either “I started” or “I am starting” not “I start.” I was going to suggest lang-8 for written corrections but it appears they changed to HiNative.com (I’m not affiliated) which appears to be for a combination of corrections and asking language questions.

I used to give language corrections on lang-8. I started to notice there are two types of corrections you can give. One type of error is a true grammar mistake, like saying “a apple.” Another is just making it sound more native. In those cases I would sometimes decide how to fix the grammar while keeping the original way of saying it, but also suggest a better way of saying it.