First off, there is no need to talk to girls i meam dont feel obligated to do that. Second stop watch porn and masturbation if u do that, it really makes connection with women very unhealthy and awkward. There actual researchs on this... Another than that is to be confident in the first place ...like get the basics right first wear clean and neat clothes brush your teeth take care of your over all hygien and smell great. That will certainly boost your confidence. Then remember they are just humans like me and you, you dont need to over think "what will she think about me if i say this or that" try not to aim to attract (to like you or be your gf) every girl you meet and just be your self and talk like u do normally with other people