His side were unfortunate to begin their qualifying campaign with a 1-0 defeat to Croatia after a decent performance in Zagreb on Friday night.
The Scots were then held to a goalless stalemate by Serbia at home in front of a disappointed Tartan Army the following day.
Both teams now head into this clash determined to claim their respective first wins in Group A.
Janevski said: "Regarding the attacks, Scotland had opportunities to win the game. But we had the same problem against Croatia. It's football.
"The chances you create, you have to score. Without scoring goals, you can't win the game.
"Your coach has his problems and I've got my problems but over the last couple of days, I see my players are motivated again."
Despite having no points on the board so far, Janevski warned Scotland his side have taken plenty of confidence from running top seeds Croatia so close.
A goal from Nikica Jelavic was all that separated the two sides and Janevski says motivation is high within his camp.
He said: "We played very well against Croatia. Even though we didn't take anything from that game, we now have more confidence.
"Scotland might be favourites at home for this game but we have confidence from the last game and we will try for a good performance and to take the points also from Glasgow.
"We know that playing against Scotland when they are at home is not an easy game for anybody. I saw the game against Serbia on Saturday and they are a very compact team, they have some experience and young players, with a lot of character.
"They also have the supporters behind them and their help is like a 12th player.
"They have very good counter-attacks and they are dangerous at dead balls.
"It's going to be a tough game but we also have our ambitions. I have confidence in my players. They are motivated and that gives me a good feeling."
Janevski - who replaced John Toshack as boss last month - says his ambitions for the section have not changed after their own performance against Croatia.
He added: "Before the start of this qualification, our motivation was to go into every game and have a good performance.
"It's a tournament of 10 games and we want to get as many points as possible. But where we will get those points, I don't know."