English is not my native language, but I'm a willing pupil and in most cases I'm pretty confident in my knowledge, but sometimes I hesitate to use particular words. I wrote this tweet recently:
I amused. Person who cannot cope with "Cannot modify header information" error should not establish himself a web-developer.
I'm not sure if I made the sentence clear. Shouldn't I have used "establish as web-developer," or should I have not used the word "establish"?