[bjcy]

It's so great to see people learning Thai! For both you and parent, if you haven't found this already, this website does a good job of giving accurate English definitions for Thai words, along with sample sentences from Thai sources: http://thai-language.com/id/133751 (this is the entry for 'ลำบาก') There's also a mobile app, which is even easier to use than the site.

Good luck and สู้ๆ นะ!

[toastal]

That site really IS pretty good. I've always appreciated studying a dialectal difference before traveling to different regions in Thailand -- in my experience the locals will treat you better if you can not only speak Bangkok Thai, but put in the effort to learn some of their vocabulary. Getting non-tourist treatment is exactly what I'm looking for when trying to learn about a new area.