The Scots, currently placed bottom of Group A, meet Macedonia on Tuesday night in Skopje before they host Croatia next month.
With just one win and two draws from eight fixtures, Wolves striker Griffiths is hoping he can be a part of a pair of triumphs in order to lift the disappoint Scottish fans.
"We want to get as far up the table as possible and finish the campaign strongly. We have only got two games left so hopefully we can get six points from them,” he said.
"We knew it would be a difficult game on Friday (2-0 loss to Belgium) and we know it will be the same on Tuesday as well."