To second Goldfish man, absence makes the heart grow fonder and the dick grow stronger.

I can almost guarantee you felt bored and lost your boner partly due to your porn use. The other part was probably nerves and unmet expectations. Your thoughts on the blowjob and pussy are normal when you're new to sex. Think of it like alcohol: the first few times you try it, you don't get what the fuss is about; after a while though, you acquire the taste and there's no turning back.