Verse 1 has synonymous parallelism, while verse 2 has antithetic parallelism to verse 1. This helps to interpret the first phrase. The parallelism does show progression from walking in the counsel to being a part of the counsel.
follow (הָלַךְ֮ walk) the counsel (בַּעֲצַ֪ת) = take (עָמָ֑ד stand) the path (וּבְדֶ֣רֶךְ path, journey) = join (יָשָֽׁב sit, dwell) the company (וּבְמֹושַׁ֥ב assembly)
Wicked (רְשָׁ֫עִ֥ים) = sinners (חַ֭טָּאִים) = insolent (לֵ֝צִ֗ים mockers) (all plural)