A combination of questions (Grammar, Writing and phrasal verb)

Q.1 what should I choose in the following context and why ? (early vs earlier)

1- I have been doing this since early/earlier this year.
2- This occurred early/earlier this year.

Q.2 is the following context makes sense ??

They want to break us of our traditions. ( I mean they don’t want us to follow our traditions anymore).

Q.3 Checking writing: which of the following is more correct, in terms of writing ?

1- it is a round seat with soft top, no back and no sides.
2- it is a round seat with soft top and with no back and no sides.
3- it is a round seat with soft top and with no back and sides.