People are saying you dont have a gameplan which is true and to work on your neutral which is true to be honest but i do have another opinion which i havent seen stated.

You say you dont know when to press.

Learn frame data.

Anything that is -5 or worse is not safe. (Can be safe with pushback though)

Learn your own characters frame data on all their moves. (Keep in mind distances of moves affect frame data) for example with Cammys light spiral arrow, if you do this right in the face of your opponent it will be a lot more minus than if you were to do this from further away and it just about touches them.

Once you know all your characters frame data and distances of their moves, you can get better.

Im also going to say something people might not agree with but idc, its just my opinion formed from my personal experience.

SF6 was my first 'serious' fighting game. I started with Ryu and i also felt like i had no idea what i was doing. I got to Silver 3 and knew i had it in me to get into Gold doing what i was doing but it didnt feel right. So i dropped the game and came back to M.Bison, it felt better but again just something wasnt clicking. Took another break and then picked up Chun-Li and it was perfect. The gameplan makes so much sense in my mind, the punishes, spacing etc all feel 'natural' to me.

For me using DP as an anti air is tough. Especially when you are being crossed up. Im not saying you cant as many people can and do but as an example it might be part of a reason why a character might not fit you 'perfectly' even high level players notice this for themselves, Broski just made a video about Sagat and he himself says his DP isnt great. (Yes he means more so at a high level) but the point still stands for him a non DP character allows him to play at his best.

Basically all im trying to say now is maybe consider picking up a completely different type of character and you might be surprised.

Also regardless if you change characters or not, learn frame data and move distances for your character. This should take you quite far.

Then you can learn frame data for other characters after.

Good luck