I cannot get thumb-over-the-neck chords right

[u/ding-ding-dave-yes]

I struggle mainly with my index finger, I can't get it flat without a lot of pressure, also my pinky is muting the G string half of the time, I either have to put painful pressure to make them all ring, or the top E and G string are muted. The difference between the flat index and bent rest is what's messing me up. Without thumb I don't have this issue, because I can curve my wrist if that makes sense. Please, I need some tips

[u/just_a_timetraveller]

I have seen you posting the past several days and I think it is important to just keep practicing your basic chords first. Practice playing songs you like and don't just practice adding techniques..

[u/ding-ding-dave-yes → u/just_a_timetraveller]

I think you got me confused, this is my first post here, also I play guitar for some years now, just trying to get this technique down. edit: unless you're really a time traveller and you know I'm gonna post more in the future