I really think this is going to change so much over the next three games. The teams are all so close, that literally a single result could move you three or four places.
Tonight is really important. I don't think we need to win it (though we're definitely capable of doing so), but lose it, and I think we'll struggle to get the 5 more points required in the last 4 games to finish above City. Which then leaves us trying to finish ahead of two of the other three.
As others have said, win tonight, and I'll start feeling confident we can do it.
No one is going to win every game to the end of the season (at least it would be pretty incredible if they did), more importantly, it's impossible for ALL of the teams above us to do it, given they are playing each other. Chelsea have to play Forest AND Newcastle, Chelsea also have to play Liverpool, Newcastle have to play Arsenal as well. After tonight, you could potentially see Man City winning every game, which is why they're favourites for top 5.
Whatever happens tonight, I suspect we're going to need some sort of result at Old Trafford on the last day.