Never mind m8, dont let it worry you, the more you play in front of people the easier it becomes, the nerves for me have never stopped until half way through the first song, once the first solo is out of the way I relax and its no different when family & friends are watching either.
I once spent an entire gig with a guy standing right in front of me just watching what I was playing, I thought "here we go" but when the gig was over he came up to the bar and said "let me buy you a drink, that was awesome" although quite off putting I just pretended that he wasnt there, a weird way to show your appreciation for someone but hey, just enjoy yourself and the audience will enjoy it too