I did too for the longest time. eventually out of panic I forced myself to act how I knew I would if I were totally brazen, sexy, and outgoing. each time I did it, it got easier. every time I did, it was me. I also forced myself to make a mental block against the fear of rejection or looking stupid. I put a wall up so that even though I "knew" I was going to be seen as stupid or clumsy or dorky...I also know that people are attracted to people who are at ease and comfortable with themselves. That shows the most in the bedroom. nothing is more sexy than a woman who feels beautiful and is confident in her sexuality. I also make the times when i'm being outgoing my time to be mentally healthy (which is my way of thinking and may be an ocd thing haha).