Righteous response. Much respect to you ahki.Bro if you're serious about marrying this Somali woman and you truly love her, just do it. Also, if you are committed to joining the religion of Islam I will be very happy for you and call you my brother regardless of your origins. Islam eliminates racial identity and your identity become that of a mu'min (believer in Islamic monotheism).
If your intentions are pure and lawful then may Allah S.W.T makes things easier for you in both marrying this sister and guiding you to the straight path. Peace be upon you!