Everton are said to be closing in on a January deal for Lookman - worth £11 million plus add-ons.
However, the Addicks' teenager, who has played fewer than 50 career matches, admits he is not yet ready for the rigours of top flight football.
"I am still learning and I still need to play and score goals. Maybe when the time is right I will do what needs to be done and play in the Premier League one day," Lookman told the Sun's Goals pullout on Monday.
Charlton recently hired Karl Robinson as manager and, given the Liverpudlian's track record of player development, it is perhaps little surprise that Lookman is happy to remain in south-east London for the time being.
Tottenham Hotspur and England midfielder Dele Alli is the most notable of Robinson's proteges, followed by Everton's own Brendan Galloway.
Alli found himself in a similar situation to Lookman two years ago, when Spurs agreed a deal to sign him January before loaning him back to MK Dons until the summer.
And Robinson took Lookman to watch the 20-year-old in action against CSKA Moscow earlier this month.
"Going to Wembley was basically a field trip to help me see what that level is like," added the 19-year-old.
"It was an extra thing that you really wouldn't expect most managers to do."
Can Lookman replicate Alli's success if he moves to Goodison Park?
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