Question:I'm 20 years old Ethiopian boy. My question is: is it advisable if I married right now?
"Let marriage be held in honor among all, and let the bed be undefiled: but God will judge the sexually immoral and adulterers" (Hebrews 13:4).
Since you are above the minimum age of 18 required in your country, and assuming that you prepared for handling the responsibilities of supporting a family (I Timothy 5:8), then I don't know a reason why you shouldn't. But then, you haven't told me anything about your situation.
"But if they don't have self-control, let them marry. For it's better to marry than to burn" (I Corinthians 7:9).