The Finn missed out on the World Championship this season as team-mate Lewis Hamilton claimed his fourth title.
Bottas grabbed the headlines at the season-ending Abu Dhabi Grand Prix as he won his third race of the campaign.
While it was Bottas' 13th podium finish of the year, Hamilton won six more races and Bottas admits being consistent is not enough going into 2018.
He told Sky Sports F1: "The target next year is to win more. With the points system you need to win races if you are to win the title.
"Of course you need to be consistent and, for me, the biggest thing was inconsistency through the season. There were times when l performed really well and there were times when l performed not so well.
"That was the main reason Lewis beat me. He was on it all the time."