I had a similar problem,I was scared and dint feel comfortable because english is my second language.I was thinking like -damn,what if I have to share and ppl wont understand me because of my accent and improper grammar.I gave it a try and it wasnt bad at all.Nobody push me to say anything so for the first few times I just listen what others had to say.Im still kinda quiet but its a great opportunity to break my insecurity and feel more confident.Good luck!