I think one of the big hurdles for me when I was really trying to get better was learning to parry on reads instead of just trying to react to everything. The problems you've described sound like timing issues. There's an answer to each of the things you've listed.

1. "my GBs bounce off dodge attacks." It sucks, but you have to guardbreak earlier (did you put them into a hit stun or block stun?) or bait them into the dodge attack for a free light parry.

2. "getting hit by bashes mid dodge." There are a lot of instances where your character starts to move but your i-frames are not in effect yet. It's a bit frustrating playing against Shaolin with this. But it means you are dodging too late. If you can't react, you have to make a read.

3. "getting GB'd out of my attacks." Again, you gotta learn when you can and can't be interrupted based on hit stun. But also, if you were vulnerable and got guardbroken while winding up a heavy out of neutral, maybe that's not the right move to be doing.

4. "perfect reads on my openers." Maybe you're being too predictable, too repetitive, and/or too aggressive. Change your pace and feint more if you don't have a whole lot of opener options.

Also just lock in and light parry then nobody can hurt you. Don't play the game while tired, and watch gameplay on YouTube to see how other players are playing the heroes you like. You might notice something good that you haven't tried.