lol... its only when u play with a permanent team competitively then u use the same heroes and strategy.. but they normally have more than one strategy...

You need alot more training as 2/3months old is still very young dota player..

i've played dota since 5.84c, which was 2002 till today.. about 10 years.. and i can play all heroes and i'm all rounder.. but prefer carry/tank

so choose the type of heroes u like and master all of them...