様(よう)にするTo try to, To make sure to, To endeavor to

(A) ようにする is an expression in Japanese which combines the auxiliary verb ようだ, with する (indicating that you will 'try' to do something). As ようだ is being linked to the verb する, it will take on its adverbial form, ように. This structure emphasizes that the (A) action (always a verb) is something that the speaker is going out of their way to do, and implies effort.

Naturally, this structure may also be used with a negative verb, to imply that (A) being done is something that is actively being avoided. This translates as 'to make sure not to do (A)'.

Fun Fact

Because ようだ comes from the kanji 様(よう) 'manner', it carries the nuance that the 'way' that someone is doing (A) is specifically in a way that has success as the goal. Literally it translates quite closely to 'to do (A) in the manner of getting it done', and therefore just strengthens the (A) action, by using 'to do' twice.