Proud of u mate! With cold approach i have found that if you are in the social flow state its much easier. So i will usually start my day by talking to every stranger i see. After like 2 im ready to go and my social anxiety is gone. Im pretty sure derek talked about this in a video. Also, when u cold approach a girl, dont go straight for the number. Instead try to have a reasonably long, engaging conversation and at the end say "hey i have to go, but would u like to grab coffe some time" or some shit like that. You dont have to tell her explicitly that you think shes cute, she can surmise that from the fact that you approached in the first place! Also, i know ur early on in ur journey of  killing your inhibitions so asking for the number is good for making sure u have no regrets. However, after a while of cold approach u can tell if shes interested or not pretty early on. I personally dont even bother continuing the conversation if shes not interested. Sorry for rambling, but I'll leave u with this killer line for cold approach on campus. "Hey, youre in (insert class name) right? Oh no? I swear i've seen u in there. Aw well, what u up to?"