feeling like i’m not meeting his needs

Lana

my boyfriend and i have been together for roughly 8 months the relationship is long distance he comes to see me roughly twice a month. he’s always been very sweet and respectful but he has always wanted me to send him nudes and to sext him things like that. I’ve always really struggled with speaking about sexual things even with my partner. I don’t know why it makes me extremely uncomfortable, beforehand he was very understanding but recently he’s gotten a little bit more antsy. he will get a little irritated when he suggests me to send him some thing and I expressed that I’m not comfortable doing that. is there anything i can do to make me more comfortable and make me more willing to do so? because I feel like I’m not meeting his needs.