I am proud

I am proud of myself because 1,5 years ago I moved from my hometown Irkutsk to Sochi ( this city is located on (in) the South of Russia). As you know Sochi was a (the) capital of (the) winter Olympic Games in 2014. I wanted to participate in that great world event, that's why I decided to went (go) there. I lived in Sochi 1,5 years, but I had to (go) back home. Now I live in Irkutsk, but I have to (go to *my?* hometowns - Irkutsk and Sochi. And (better to say: Also,) I have a tattoo with the main symbol of (the) Olympic Games - five colored rings!

Really small mistakes. In my opinion you are just missing 'a' and the' a lot. Verbs of motion are a little bit wrong too, especially using the word 'go'.