I have “good months” and “bad months” with my fluency. It’s like a roller coaster man, ups and downs, just gotta keep on keeping on and use the strategies that works for you. You probably know this buy if you know you won’t be able to say a sound, rearrange the sentence to start with a more friendly starter sound. I totally get the “thanks” bit. It’s so shitty when I can’t say thanks. They’ll never know how much I want to say it, instead I just ignore it and pretend like I’m just another ungrateful or inconsiderate person. Meh, they’ll get over it! Your outlook on your own condition will make our break you. Don’t let it beat you.