How to hold my own against stronger players?

Specifically in a matchup like these:

Makoto vs guile [This one interest me the most in learning]
Guy vs bison[Intrigued and salt about it lol]
I’d add decapre/viper to the list but there is very,very,very few of those otherwise it’d be a different story.

Ah wait wait nvm nvm nvm

…so you don’t want an answer anymore?

I found the character threads in the middle of the website for each character in the game. Although it’s gonna take a lot of practice to see if what’s in those threads really gonna work lol. Basically I’ve been trying to play ultra like it’s Doa, not workin so I bothered to learn some stuff.

This it http://wiki.shoryuken.com/Ultra_Street_Fighter_IV