hmm. i think your giving the girls too much attraction and no comfort, and thats why they are canceling or flaking you. the MM (mystery method) way of gettin the girl is attract>comfort>seduce. it seems like your attraction building is great! the being cocky/funny etc. but when your texting one of the girls or messaging them online you wanna add something like
so how was your day?
whad u do today?
yea i just saw true gritt with a few friends, any movies out u like?
yea im helpin my friend paint his apartment blue, my fav color fyi lol. whats yours?
to help build comfort. "a lot" of girls arnt gonna meet up with someone theyre not comfortable with. those who do meet up though, "skipping the comfort stage", and lets say you fclose, (attract>seduce) will feel guilty because they just fucked you and know nothing about you. its happened to me a lot. one girl i gamed online, using all the lines etc had sex with me in 3 days and after we had sex she told me "i just had sex with you and i dont even know your fav color". and it ended with her bout month later.
also when you get a girls number, i give them a nickname right away. so id text them saying:
hey stranger danger

whats up
hey trouble
as for the girls stoping with texting you though, that could be anything, build more comfort they shouldnt see u as out to get sex. it may be you migt e coming off as 'needy' (texting them too much, askin to hang out every day or 2). i dont know. i just hope this helps