want to learn boxing..Street boxing..but how?

Punch me in the face. I'll tell you if you do it right. If I stop breathing you're a master.

I guess that depends on where you live. Basically find a reputable gym and start training. If you,are looking to learn the art of boxing. If you are looking to learn how to defend yourself go for MMA training as it is much more versatile.

Slow the jumpman in your head and learn to visualize. A lot.

Google it. ┏ʕ •ᴥ•ʔ┛

join a local boxing gym

Find a pugilist club

The streets.