LT
We have talked privately so you know my thoughts on all this but I did want to add a few things even though I tend to end up upsetting people more than anything here.

As someone else with anxiety, I get it. I used to have massive anxiety about T emails and it became really unhealthy. I would spend so much of my day just checking for a reply and then getting upset or freaked out if there was none or he didn't say what I wanted. I realized it did me no good. It also ended up leading to email misunderstandings which lead to a massive rupture and emails being done with all together. I see the misunderstanding part with you guys already. This is why I think it's so important to just wait on things and discuss in person. Yes rejection can be scary and no one wants to be rejected but it happens to everyone. I think with T's it can be painful for them to reject us but also helpful, as compared to others, they know how to manage it better and can help us through it. I have been rejected 3x by my T since this year began and he's still the most important person in my life. I think even though it hurts at the time, it helps me grow, so next time, don't be afraid, go in there and just say or do what you need, if it leads to a rejection, it sucks but you can get through it. You are stronger than you think.

Anxiety lies to us... I've worked alot with my anxiety in therapy and outside of therapy. I find that CBT stuff has been helpful, have you ever asked your T about this?! Mine gives me this worksheet. It helps you when you feel super anxious about something like "Oh I messed up, he will terminate" and helps you walk yourself through the anxious thoughts and see the logic in what really is... like how it's ok if you made a mistake, you are human, forgive yourself. Mistakes don't automatically lead to termination, there is many other options he could do. I have found it to be very helpful and if you wish, I'm more than happy to send you a copy of the sheet so you can use it yourself

This may seem harash but... The best thing you can do for YOU, and your growth, is to make your own boundaries. I'm not saying "Never email him again" But limit yourself. Don't email on holidays or even weekends unless it is urgent. T's do have lives outside of work and they deserve to enjoy them. No you don't have to take care of him, but you do have to take care of you and while this is painful, trust me, it's helpful. My T STILL says I can email whenever (although he says he wont reply) but I wont do it anymore. I have found myself feeling less anxious in a sense because I'm not constantly fretting over emails. Talking in person about things seems to be the most useful way to work them out. Also, at some point, you should start thinking of less frequency. I say this, because you spiraled so easily from a 1 day delay in a email and a response you didn't like, that it shows you are VERY attached and dependent on him, and I've been there and it's no fun and isn't healthy. I want to see you change your patterns and be able to enjoy things more, not let anxiety win. You can do this. I worry about how you will handle holiday break (Christmas, thanksgiving).

I personally don't like your T either, he's too harsh for my taste... BUT most people hate my T and he works for me. If your T works for you, that's all that matters. He's still allowing the stone, so that's good. Tomorrow is nearly here and hopefully you can talk through a lot of things related to all this.