<human>: A bit of background information... I've been in three proper relationships in my life since I was 15. The longest was about two years on and off with another girl. Even during all that time I had trouble throwing myself fully into a relationship, so I don't know if this is a "time will fix it" issue. Moving to present day, I've been seeing my boyfriend since the end of December, and we made things "official" in February. 

My problem is that I never think I'm allowed to make advances, or that I'm going to be annoying. I find it difficult to initiate kissing, hugging, hand holding. I sit there, really enjoying his presence, but also... really wanting to hold his hand. But I can't. And after 3 months, I still can't do it. We're pretty comfortable with each other and things are going really well; I just can't get the hang of this. 

How can I get round this?

Can you condense the text into a few key points?
<bot>: I've never been able to be comfortable with initiating affection; how can I get over this with my boyfriend of 3 months?