I expressed my worry for another person - instant regret, felt nosy and mean although I wasn't the only one concerned. 

I'm a new tutor/guide for students, and today I replied to a question someone sent to us - instant regret again, I felt like I didn't have the right to reply, felt like I was being too confident bc there are teachers in that group chat as well. 

Also, I sent a question to a group chat. Everyone saw it but no one answered. I feel like a burden, and that everyone's finding me annoying or oblivious. 

How do I get over this??? I know I'm being irrational. It's super exhausting to feel that shame, guilt and regret all the time after I do something out of the ordinary. My mind is filled with what ifs all the time and I wish I never do anything.