Is this the correct way to say "I practice Chinese with my friend"? Is "我习说中文一起我的朋友" the correct way to say "I practice speaking Chinese with my friend"?
Nope. The correct statement is: （我）跟我的朋友一起练习说汉语

This is because Chinese is an SVO language, and we have:


我 subject 1 (S1)
跟 conjunction (&amp;)
我的朋友 subject 2 (S2)
一起 adverb (A)
练习 auxilliary verb (aux)
说 verb (V)
汉语 object (O)


Syntax: S1 &amp; S2 A aux V O