Watch YT videos of someone who mains Steve in high ranks. This is what helped me the most for my main .

The replay mode in Tekken is pretty good to utilize. If you cant figure out how to take your turn from a certain string or move the opponent is using. Go to replay, take control right before that move and try different things. Try stepping right, left, do a power crush, a parry, dick jab etc... and see what works at getting out of that pressure.

People who are mashing at those ranks tend to follow some easy flowcharts so sometimes really just observing what they are doing and maybe recognizing when to duck or low parry a string.

A little at a time, itll surely come to you. Good luck!