After my ex and I broke up about a week and a half ago, I've had some crippling approach anxiety trying to get back on the horse. I can't bring myself to approach, something I used to do semi easily... or make a move (I met a really cute girl through a mutual friend, and while I was flirty, I couldn't make a move)

Am I just trying to rebound too quickly? I'm still hurt by the breakup, compare each girl to my ex, etc. But I also want to move on. I am also worried I am putting too much pressure on myself way too soon.