sucking a pennies

I'm 14 and need help!!!!!!!!! Any tips on how to suck a dick because the boy I'm talking to wants me to suck his dick and I don't know how and his dick is the 1st one I've ever even seen.... and don't judge guys but I gave him a hand job and I was so scared I didn't even move my hand😳 he pretty much did it for me and ten he tried to make out with me but I didn't know how so I just pulled away and I think me got mad but he's like really hot and has a big dick so I really need help any tips?