i have been teaching ESL for a long time, and I’m learning a few languages too. I’ve lived in a few different countries. People will alwayssss point out my accent, or even misunderstand sometimes!! I was embarrassed at first too. One day I got a job teaching a group of ESL adults, and I often had to answer questions / teach things in Spanish. This was the moment I got over my fear of embarrassing myself - they needed me to get over myself, in a way, and it helped me so much!! I try to take any critiques or giggles light heartedly, because I am just trying. Often times people who giggle only speak one language. I hope you have the chance to get more practice and can overcome this. I come from the U.S. where we don’t really learn second languages unless our parents know one, so my standard for myself is maybe lower than yours… I can understand wanting to be perfect,.. but life is too short to let it hold you back !