Thai isn't that difficult. It's a category III language based on the ILR (Interagency Language Roundtable). Korean, my secondary language, is a category IV. Somali, my tertiary language, is supposedly a category III like Thai but I think it's harder than Korean! https://www.state.gov/foreign-language-training/
*Somalis. No such thing as a Somalian. I was taught that day one of class haha. I haven't had too much opportunity to use my Somali. Korean is definitely the better of the two when it comes to opportunities to use it
Fun fact #1. I've been on the Navy ship that rescued him. Albeit a few years post-rescue. Fun fact #2. I've worked with the native linguist who helped with the rescue.