theres no save game in dota 2. Just play Dota 2 like how u play other moba. Dota 2 can be rewarding but challenging.I suggest stick to unranked until u fully understand whats happening in the dota 2 universe. It should take you at least 200-1000 hours in order to fully understand those basic skills of mobas. Anyway good luck newcomer and have fun. Owh yeah you will get flame for being noobs so theres that. So its either can u endure those flames or u will just enjoy the game as it is.