How to spice it up in bed?

My bf comes back from basic training this weekend. I bought lingerie but I can be very awkward when I’m completely naked because it’s like “ahhh, cover my tiddies” 😂 I’m just not very confident in my body lol. Since I’m in a military program at my university, I won’t get to see him much and my parents come next weekend for my birthday so it’s either now or wait 2 more weeks. I need a boost of confidence! Any tips??