Improvement

Hey all! I'm an anivia otp in bronze. I obviously want to get better so i thought of a plan to do so. I was thinking of focusing on 1 skill each month and doing a certain thing once a day for a month. For example everyday doing 10 minutes of csing as karthus in a custom game. Do you think this could work and if so do you know any tools i could practise with for other skills. Thanks in advance!