I'm awkward about sexual things, how can I fix this?

I'm falling VERY hard for my partner, he's probably the closest thing to perfect in my book, and I'm comfortable with him, and in bed with him.. If it's something I know how to do, I'm five years younger then him & hes been married before, he's had a lot more learning chances to say the least, when I first started getting on top I was awkward about that, but he would ask me to & now I would rather be on top. But when it comes to trying new things I'm willing to learn but I'm so awkward & he's understanding & would never make me try anything but I want to be able to please him. I don't know how to give a blow job & he wants me to, and he wants to 69, but I'm so shy that I don't know how to enjoy it with my stuff in his face. Any tips on how to get over this? Or ideas on how I can learn so that I can just surprise him with a shocking wild side? I want to blow his mind in bed but I haven't been with very many people and it's always been boring before now. I need help ladies!