I am a beginner in cp ans i want to achive big title codeforces but first my target to reach pupil. How to practice so that i want to reach a pupil as soon as possible.I want to reach pupil in 2-3 month, please help.

I am just start cp ans i want to reach pupil.what are the practice technique help to reach my milestone.Currently i am doing like this way, i start solve 70-80 problems of 900 rating then after i do 70-80 of 1000 and so on, is this good way to practice, please mentor me.