Should i screw my friend lyk he tried to screw me?

ok im gna make dis short n leave sum bits out. i lent quite a bit to ma frend tym ago. he neva wants to pay n has all dese dum *** excuses. so one day wen we linked i walked of wiv hiz phone n said if u want it bak pay muvafuka. wen i say dis i mean i aksed 4 it n he gav it 2 me so techinacaly itz not sotlen. n den i found out wer he lives. i alredy knew wer he wasfrom. so i went round n he gav a lil bit n said he wil giv da rest sooon. wateva man. wen he pays all ov it im gna therten n say giv me 10 evry