You needn't make that decision until you get an agent.
You're quite right to identify this as a thorny situation, with strong considerations in both directions (and maybe additional options besides).
If you have a strong preference one way or another, either way is certainly workable. But if you don't, if you're willing to work either way depending on what improves your odds, then you might be better off leaving your options open -- until you'll be in a better position to make a decision.
Ultimately, this is a question of branding. Every author has a brand, whether they want one or not; yours may have some natural gravitation in a direction you're unhappy with. You will have an easier time once you know what kind of branding you do want, than what kind you don't.
If you're not there yet, that's OK. You've got time, and in order to get to "a wide teenage audience", you're going to need some steps along the way -- an agent; a publisher. These people will (hopefully) have the industry expertise, and the insight into your particular book and brand, to help you reach a decision.
A decent agent is not going to be put off a book because of the author's name -- nor is a decent publisher. With them, you can make it in on the strength of your writing. Then -- when you've got some pros on your side, when you're starting to talk about branding and marketing -- that's when you really need to make decisions like "what name will I publish under," and you'll also be in a pretty good place to make an informed decision.
There are exceptions here. Reasons to make a decision right away could include:
- You have a strong preference one way or the other.
- You want to start establishing a strong social-media presence even before you've started publishing.
- You're writing short fiction, or are interested in small presses, or otherwise writing something that can get you published but without giving you an agent to consult.
There are also some other alternatives:
- Publish under more than one name, if you have more than one "type" of fiction -- basically maintaining two distinct brands.
- Use your initials -- "L.A. Chang" is not false, but sounds less distinct. (It worked well for J.K. Rowling...)
- Publish under a name which is still Asian, but less obtrusively so. First-name "common-English," last-name "foreign" is something you see a fair amount of -- including the authors your cited in your own question.
Hope this helps, and all the best!