Wut up!
SF timing:
1. Practice
2. Don't play to win but aim to get whatever you are practising to hit once per round
3. Practice some more
4. Practice netural, crouch to neutral, Jump to neutral
5. Learn to use negative edge. (For example SF2 and alpha series Ryu-jhp, chp, fireball only hitting hp twice and using negative edge to get the fireball).
6. Then practice some more.
30+ years of Streetfighter and I still have lots to practice. I played a friend on my cab last weekend who used to beat me all the time 20 years ago but hadn't played at all in about 15 years. I won the first 2 sets and I didn't win a set for the rest of the night. As far as I can tell, you don't forget that muscle memory... ever.
Good Luck and welcome.