First time

Hi girls, me and my boyfriend have been going out for months and I have wanted to wait before we do anything with each other but I feel bad for him waiting (he’s okay with it, and knows that I’ve not done anything) But I think it’s time to do stuff with him, involving sex but the thing is I’m not sure how to do everything (blowjob etc) with him. He’s had sex before and knows what to do where as I’m scared because when im ready and go to do stuff I can’t just be like ‘I don’t know what to do’😂. Any tips or anything to help me with this?