Depends on how much you love her and willingness to be more patient.

From what you've described, sounds like she's quite damaged emotionally and mentally from her past. Damaged as in scarred.
Insecurity will be at her forefront because she will constantly be afraid of making another mistake and get hurt again.
Hence also her "expectations" to a certain extent.

But she's not stupid. So there are probably a few rules and things you'd need to play with when you're with her or communicate with her.
Some "words" from her you'll need to "put on the shelf" / "put aside". Especially if it's unreasonable.
Focus on the real problem which is what's she afraid of or what is it she really wants.
Often she will be clouded and that's where your petty arguments kick in.

You can be the bigger person or better man and focus on the larger things and care you give her, or things you can teach.

However, you're only human. You can only do so much to help her.
She will need to acknowledge that you are doing your best to give her your best. Talk to her openly and calmly but not arguing nor challenge.
Openly put these things and points in the table... And nicely ask, are these things I do not good? I know I'm not the most romantic person out there, and I'm not other people's boyfriend who can do this and that or as rich, but these things I do for us, is it not good?

Once she says yes it's good but.... Can d. The but can put it into discussion or thoughts. Point is to catch her acknowledging you did good.

Patience is key (if you are ok to continue). Alot of effort and work needed. As long as you feel it's worth it.

But ultimately you have to acknowledge if you can handle her or not. Otherwise like her ex... Will do more harm than help.