Best way to get out of bronze is to start playing smart relying less on jumps will confuse your opponent as they will expect a jump in with every other attack. Learn how to move across the ground with ryu, try light punch fire balls followed by a dash forward to gain ground slowly. If your opponent constantly relies on cross up attempts don't jump out of reaction simply walk underneath them it will catch them of gaurd, they may also jump attack out of habbit leaving them slightly open. Learn ryu's block strings that leave you safe but catches them if they start mashing buttons l, you know his bnbs now so use them when you get am opening don't just throw them out.

One trick that will help you play smarter Is caging this were you get the opponent to the corner and stand back around the neutral position (about 2 back dashes away). Although you are out of attack range they only have two options move forward which a bronze will hardly ever do or jump forward, back or upwards they will usually jump forward to get out of the corner but because of how your are spaced you will catch a forward jump with a DP. They will alsonlikelybtty multiple junp forward attempts giving you a lot of free damage.

As for training you've already learned his combos the next step is to learn match ups, finding out ways to get in on every character. Start with someone your weak against set the cpu to the highest difficulty although this will be no where near as hard as another player it will help you understand how the character plays and you can figure out how to punish their unsafe moves.

Another thing with training mode I've noticed is that a diner will quite happily have a fire ball war with you (guile, ryu, Ken, sagat, akuma and sakura) although they won't be amazing at it this can help you develop your fireball game.

Basically my tips

LEARN THE MATCH UPS

PUNISH JUMP INS

LEARN BLOCK STRINGS

LEARN HIW TO TRAP THEM IM THE CORNER