The Merseyside club have managed three wins from their 12 league games at home and only bottom side Aston Villa, who have one win in 11 at Vila Park, have a worse home record in the league.
"We haven't found the right way of playing at home. That is the truth. The stats reflect a really poor defensive record at home. We are a young team," Martinez told British media.
"We want to impress our fans, play attacking football and become a winning team, but we are finding it tough to free ourselves.
"But I don't think we've found it that easy this season to play at Goodison. I don't think the performances are reflected in score lines."
Everton, who are 12th in the table, seven points above the relegation zone after 23 games, host third-from-bottom Newcastle United on Wednesday.
(Reporting by Shravanth Vijayakumar in Bengaluru; editing by Amlan Chakraborty)
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