[2] He finished the theological school in Prizren, and was a teacher in his home region until 1904,[3] when he joined the Serbian Chetnik Organization.

In January 1905, vojvoda Gligor Sokolović sent Stefan Nedić-Ćela from Babuna to Vranje to bring new Chetniks and Doksim.

[3] After that, he went to Greece and Malta and worked in trade; Doksim spoke Greek and Turkish since youth, and later taught himself Arabic and Italian.

[3] When the First Balkan War started, he immediately took up arms and founded his own band, and joined vojvoda Vojin Popović-Vuk, at the front of the Serbian Army.

[3] These bands were the first to have crossed the border, cleaned the ground, built bridges and prepared important positions such as Kozjak, Stracin, and others.