The 20-year-old has been fighting his way back from a series of injuries which sidelined him for all of last season, but happily proclaimed his performance in Saturday's 2-0 win over West Brom as his best yet.
"I have got better every game. [I'm] maybe 90%," Wilshere said. "I'm not sure. Every game that goes by I feel better and better fitness-wise. When I get up to 100% I will really show what I can do."
That is not to say the midfielder is throwing caution to the wind during his rehabilitation, and he added: "It's a new experience for my first injury. I didn't know what to expect.
"I spoke to a few players who have had long-term injuries. They said you will come back and have a good game and you think 'I am back,' then you will have another game and you are not so good.
"I think the first few games my adrenalin got me through which is why I was so up for it. Then you start to realise it is not as simple as that and things start catching up with you. Then you start to get back to your best."
Manager Arsene Wenger expects Wilshere will be back to his best by February, which will give him time to gel with the likes of Mikel Arteta, who slotted both of Arsenal's penalties in their 2-0 win over the Baggies.
"He's great," Wilshere said of Arteta. "Tactically, his positioning is the best around. He is not the biggest lad but the amount of balls he wins in the air is good. He has adapted well.
"He's an older player and is great for the younger players. You can talk to him on the pitch and off the pitch. I speak to him during the game. I say 'Mikel, if you want to go forward I will sit' so there is a good understanding there.
"He knows I want to go forward and get on the scoresheet but he is the same. There is a bit of both but he lets me go more than he does."
Source: PA
Source: PA